99972016 has 10 divisors (see below), whose sum is σ = 193695812. Its totient is φ = 49986000.

The previous prime is 99972013. The next prime is 99972043. The reversal of 99972016 is 61027999.

It is not an unprimeable number, because it can be changed into a prime (99972013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3124110 + ... + 3124141.

Almost surely, 2^99972016 is an apocalyptic number.

It is an amenable number.

99972016 is a deficient number, since it is larger than the sum of its proper divisors (93723796).

99972016 is a wasteful number, since it uses less digits than its factorization.

99972016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6248259 (or 6248253 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 99972016 is about 9998.6007020983. The cubic root of 99972016 is about 464.1155825813.

The spelling of 99972016 in words is "ninety-nine million, nine hundred seventy-two thousand, sixteen".