2172804 has 24 divisors (see below), whose sum is σ = 5368608. Its totient is φ = 681600.

The previous prime is 2172803. The next prime is 2172811. The reversal of 2172804 is 4082712.

It is not an unprimeable number, because it can be changed into a prime (2172803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5122 + ... + 5529.

It is an arithmetic number, because the mean of its divisors is an integer number (223692).

2^2172804 is an apocalyptic number.

It is an amenable number.

2172804 is an abundant number, since it is smaller than the sum of its proper divisors (3195804).

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

2172804 is a wasteful number, since it uses less digits than its factorization.

2172804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10675 (or 10673 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 2172804 is about 1474.0434186278. The cubic root of 2172804 is about 129.5209985676.

The spelling of 2172804 in words is "two million, one hundred seventy-two thousand, eight hundred four".