98273781 has 12 divisors (see below), whose sum is σ = 142160460. Its totient is φ = 65419200.

The previous prime is 98273771. The next prime is 98273797. The reversal of 98273781 is 18737289.

It can be written as a sum of positive squares in 2 ways, for example, as 63345681 + 34928100 = 7959^2 + 5910^2 .

It is not a de Polignac number, because 98273781 - 2⁷ = 98273653 is a prime.

It is a super-3 number, since 3×98273781³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98273701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1320 + ... + 14081.

It is an arithmetic number, because the mean of its divisors is an integer number (11846705).

Almost surely, 2^98273781 is an apocalyptic number.

It is an amenable number.

98273781 is a deficient number, since it is larger than the sum of its proper divisors (43886679).

98273781 is a wasteful number, since it uses less digits than its factorization.

98273781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16116 (or 16113 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 98273781 is about 9913.3133209841. The cubic root of 98273781 is about 461.4725667015.

The spelling of 98273781 in words is "ninety-eight million, two hundred seventy-three thousand, seven hundred eighty-one".