2172504 has 32 divisors (see below), whose sum is σ = 5480640. Its totient is φ = 717600.

The previous prime is 2172497. The next prime is 2172539. The reversal of 2172504 is 4052712.

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, 2799 + ... + 3489.

It is an arithmetic number, because the mean of its divisors is an integer number (171270).

2^2172504 is an apocalyptic number.

2172504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2172504 is an abundant number, since it is smaller than the sum of its proper divisors (3308136).

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

2172504 is a wasteful number, since it uses less digits than its factorization.

2172504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2172504 is about 1473.9416542048. The cubic root of 2172504 is about 129.5150372862.

The spelling of 2172504 in words is "two million, one hundred seventy-two thousand, five hundred four".