99884972 has 12 divisors (see below), whose sum is σ = 190689576. Its totient is φ = 45402240.

The previous prime is 99884969. The next prime is 99884977. The reversal of 99884972 is 27948899.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (99884977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1135013 + ... + 1135100.

It is an arithmetic number, because the mean of its divisors is an integer number (15890798).

Almost surely, 2^99884972 is an apocalyptic number.

It is an amenable number.

99884972 is a deficient number, since it is larger than the sum of its proper divisors (90804604).

99884972 is a wasteful number, since it uses less digits than its factorization.

99884972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270128 (or 2270126 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 56.

The square root of 99884972 is about 9994.2469451180. The cubic root of 99884972 is about 463.9808441854.

The spelling of 99884972 in words is "ninety-nine million, eight hundred eighty-four thousand, nine hundred seventy-two".