2564764 has 12 divisors (see below), whose sum is σ = 4501224. Its totient is φ = 1278704.

The previous prime is 2564759. The next prime is 2564813. The reversal of 2564764 is 4674652.

2564764 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182 + ... + 2554.

It is an arithmetic number, because the mean of its divisors is an integer number (375102).

2^2564764 is an apocalyptic number.

It is an amenable number.

2564764 is a deficient number, since it is larger than the sum of its proper divisors (1936460).

2564764 is a wasteful number, since it uses less digits than its factorization.

2564764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844 (or 1842 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 2564764 is about 1601.4880580260. The cubic root of 2564764 is about 136.8828807066.

It can be divided in two parts, 25 and 64764, that multiplied together give a triangular number (1619100 = T₁₇₉₉).

The spelling of 2564764 in words is "two million, five hundred sixty-four thousand, seven hundred sixty-four".