98639328 has 24 divisors (see below), whose sum is σ = 258928488. Its totient is φ = 32879744.

The previous prime is 98639309. The next prime is 98639339. The reversal of 98639328 is 82393689.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 513651 + ... + 513842.

It is an arithmetic number, because the mean of its divisors is an integer number (10788687).

Almost surely, 2^98639328 is an apocalyptic number.

It is an amenable number.

98639328 is an abundant number, since it is smaller than the sum of its proper divisors (160289160).

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

98639328 is a wasteful number, since it uses less digits than its factorization.

98639328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027506 (or 1027498 counting only the distinct ones).

The product of its digits is 559872, while the sum is 48.

The square root of 98639328 is about 9931.7333834533. The cubic root of 98639328 is about 462.0440354571.

It can be divided in two parts, 9863 and 9328, that added together give a palindrome (19191).

The spelling of 98639328 in words is "ninety-eight million, six hundred thirty-nine thousand, three hundred twenty-eight".