99631936 has 28 divisors (see below), whose sum is σ = 204528420. Its totient is φ = 48097280.

The previous prime is 99631913. The next prime is 99631949. The reversal of 99631936 is 63913699.

It can be written as a sum of positive squares in 2 ways, for example, as 45697600 + 53934336 = 6760^2 + 7344^2 .

It is a super-2 number, since 2×99631936² = 19853045342216192, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24985 + ... + 28696.

Almost surely, 2^99631936 is an apocalyptic number.

It is an amenable number.

99631936 is an abundant number, since it is smaller than the sum of its proper divisors (104896484).

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

99631936 is a wasteful number, since it uses less digits than its factorization.

99631936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53722 (or 53712 counting only the distinct ones).

The product of its digits is 236196, while the sum is 46.

The square root of 99631936 is about 9981.5798348758. The cubic root of 99631936 is about 463.5887160103.

The spelling of 99631936 in words is "ninety-nine million, six hundred thirty-one thousand, nine hundred thirty-six".