901604 has 24 divisors (see below), whose sum is σ = 1779456. Its totient is φ = 396000.

The previous prime is 901591. The next prime is 901613. The reversal of 901604 is 406109.

901604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

901604 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1034 + ... + 1694.

It is an arithmetic number, because the mean of its divisors is an integer number (74144).

2⁹⁰¹⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

901604 is a deficient number, since it is larger than the sum of its proper divisors (877852).

901604 is a wasteful number, since it uses less digits than its factorization.

901604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 901604 is about 949.5283039489. The cubic root of 901604 is about 96.6062616410.

The spelling of 901604 in words is "nine hundred one thousand, six hundred four".