99861504 has 44 divisors (see below), whose sum is σ = 266175504. Its totient is φ = 33286144.

The previous prime is 99861493. The next prime is 99861569. The reversal of 99861504 is 40516899.

It is a super-2 number, since 2×99861504² = 19944639962284032, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13182 + ... + 19325.

Almost surely, 2^99861504 is an apocalyptic number.

It is an amenable number.

99861504 is an abundant number, since it is smaller than the sum of its proper divisors (166314000).

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

99861504 is a wasteful number, since it uses less digits than its factorization.

99861504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32530 (or 32512 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 99861504 is about 9993.0728006955. The cubic root of 99861504 is about 463.9445038661.

The spelling of 99861504 in words is "ninety-nine million, eight hundred sixty-one thousand, five hundred four".