2172604 has 24 divisors (see below), whose sum is σ = 4487168. Its totient is φ = 900720.

The previous prime is 2172587. The next prime is 2172613. The reversal of 2172604 is 4062712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384 + ... + 2119.

2^2172604 is an apocalyptic number.

It is an amenable number.

2172604 is an abundant number, since it is smaller than the sum of its proper divisors (2314564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2172604 is a wasteful number, since it uses less digits than its factorization.

2172604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2545 (or 2543 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2172604 is about 1473.9755764598. The cubic root of 2172604 is about 129.5170244410.

The spelling of 2172604 in words is "two million, one hundred seventy-two thousand, six hundred four".