99904472 has 8 divisors (see below), whose sum is σ = 187320900. Its totient is φ = 49952232.

The previous prime is 99904463. The next prime is 99904487. The reversal of 99904472 is 27440999.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6244022 + ... + 6244037.

Almost surely, 2^99904472 is an apocalyptic number.

It is an amenable number.

99904472 is a deficient number, since it is larger than the sum of its proper divisors (87416428).

99904472 is a wasteful number, since it uses less digits than its factorization.

99904472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12488065 (or 12488061 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 99904472 is about 9995.2224587550. Note that the first 3 decimals coincide. The cubic root of 99904472 is about 464.0110357066.

The spelling of 99904472 in words is "ninety-nine million, nine hundred four thousand, four hundred seventy-two".