2172764 has 48 divisors (see below), whose sum is σ = 4596480. Its totient is φ = 887040.

The previous prime is 2172761. The next prime is 2172773. The reversal of 2172764 is 4672712.

Its product of digits (4704) is a multiple of the sum of its prime divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19172 + ... + 19284.

It is an arithmetic number, because the mean of its divisors is an integer number (95760).

2^2172764 is an apocalyptic number.

It is an amenable number.

2172764 is an abundant number, since it is smaller than the sum of its proper divisors (2423716).

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

2172764 is a wasteful number, since it uses less digits than its factorization.

2172764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 168 counting only the distinct ones).

The product of its digits is 4704, while the sum is 29.

The square root of 2172764 is about 1474.0298504440. The cubic root of 2172764 is about 129.5202037618.

The spelling of 2172764 in words is "two million, one hundred seventy-two thousand, seven hundred sixty-four".