98723412 has 18 divisors (see below), whose sum is σ = 249550938. Its totient is φ = 32907792.

The previous prime is 98723407. The next prime is 98723419. The reversal of 98723412 is 21432789.

It can be written as a sum of positive squares in only one way, i.e., 96118416 + 2604996 = 9804^2 + 1614^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2742317 = 98723412 / (9 + 8 + 7 + 2 + 3 + 4 + 1 + 2).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98723419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1371123 + ... + 1371194.

It is an arithmetic number, because the mean of its divisors is an integer number (13863941).

Almost surely, 2^98723412 is an apocalyptic number.

It is an amenable number.

98723412 is an abundant number, since it is smaller than the sum of its proper divisors (150827526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98723412 is a wasteful number, since it uses less digits than its factorization.

98723412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742327 (or 2742322 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 98723412 is about 9935.9655796505. The cubic root of 98723412 is about 462.1752862724.

The spelling of 98723412 in words is "ninety-eight million, seven hundred twenty-three thousand, four hundred twelve".