98975631 has 4 divisors (see below), whose sum is σ = 131967512. Its totient is φ = 65983752.

The previous prime is 98975603. The next prime is 98975659. The reversal of 98975631 is 13657989.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (98975603) and next prime (98975659).

It is not a de Polignac number, because 98975631 - 2⁹ = 98975119 is a prime.

It is a super-2 number, since 2×98975631² = 19592351063696322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98975671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16495936 + ... + 16495941.

It is an arithmetic number, because the mean of its divisors is an integer number (32991878).

Almost surely, 2^98975631 is an apocalyptic number.

98975631 is a deficient number, since it is larger than the sum of its proper divisors (32991881).

98975631 is a wasteful number, since it uses less digits than its factorization.

98975631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32991880.

The product of its digits is 408240, while the sum is 48.

The square root of 98975631 is about 9948.6497073724. The cubic root of 98975631 is about 462.5685407064.

The spelling of 98975631 in words is "ninety-eight million, nine hundred seventy-five thousand, six hundred thirty-one".