99556672 has 14 divisors (see below), whose sum is σ = 197557898. Its totient is φ = 49778304.

The previous prime is 99556657. The next prime is 99556679. The reversal of 99556672 is 27665599.

It can be written as a sum of positive squares in only one way, i.e., 66194496 + 33362176 = 8136^2 + 5776^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99556679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777723 + ... + 777850.

Almost surely, 2^99556672 is an apocalyptic number.

It is an amenable number.

99556672 is a deficient number, since it is larger than the sum of its proper divisors (98001226).

99556672 is a wasteful number, since it uses less digits than its factorization.

99556672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555585 (or 1555575 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 49.

The square root of 99556672 is about 9977.8089779270. The cubic root of 99556672 is about 463.4719518075.

The spelling of 99556672 in words is "ninety-nine million, five hundred fifty-six thousand, six hundred seventy-two".