9072904 has 8 divisors (see below), whose sum is σ = 17011710. Its totient is φ = 4536448.

The previous prime is 9072901. The next prime is 9072919. The reversal of 9072904 is 4092709.

It can be written as a sum of positive squares in only one way, i.e., 8820900 + 252004 = 2970^2 + 502^2 .

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

It is not an unprimeable number, because it can be changed into a prime (9072901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567049 + ... + 567064.

Almost surely, 2^9072904 is an apocalyptic number.

It is an amenable number.

9072904 is a deficient number, since it is larger than the sum of its proper divisors (7938806).

9072904 is a wasteful number, since it uses less digits than its factorization.

9072904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134119 (or 1134115 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 9072904 is about 3012.1261593765. The cubic root of 9072904 is about 208.5685259942.

The spelling of 9072904 in words is "nine million, seventy-two thousand, nine hundred four".