99637412 has 12 divisors (see below), whose sum is σ = 199274880. Its totient is φ = 42701736.

The previous prime is 99637399. The next prime is 99637429. The reversal of 99637412 is 21473699.

99637412 is an admirable number.

It is a super-2 number, since 2×99637412² = 19855227740115488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99637412.

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, 1779212 + ... + 1779267.

It is an arithmetic number, because the mean of its divisors is an integer number (16606240).

Almost surely, 2^99637412 is an apocalyptic number.

It is an amenable number.

99637412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

99637412 is a wasteful number, since it uses less digits than its factorization.

99637412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558490 (or 3558488 counting only the distinct ones).

The product of its digits is 81648, while the sum is 41.

The square root of 99637412 is about 9981.8541363817. The cubic root of 99637412 is about 463.5972091549.

The spelling of 99637412 in words is "ninety-nine million, six hundred thirty-seven thousand, four hundred twelve".