9001604057 has 6 divisors (see below), whose sum is σ = 9531524394. Its totient is φ = 8471729760.

The previous prime is 9001603993. The next prime is 9001604083. The reversal of 9001604057 is 7504061009.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8472097936 + 529506121 = 92044^2 + 23011^2 .

It is not a de Polignac number, because 9001604057 - 2⁶ = 9001603993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9001604257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 379682 + ... + 402692.

It is an arithmetic number, because the mean of its divisors is an integer number (1588587399).

Almost surely, 2^9001604057 is an apocalyptic number.

It is an amenable number.

9001604057 is a deficient number, since it is larger than the sum of its proper divisors (529920337).

9001604057 is an frugal number, since it uses more digits than its factorization.

9001604057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46039 (or 23028 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 9001604057 is about 94876.7835510880. The cubic root of 9001604057 is about 2080.2073924894.

The spelling of 9001604057 in words is "nine billion, one million, six hundred four thousand, fifty-seven".