2641564 has 6 divisors (see below), whose sum is σ = 4622744. Its totient is φ = 1320780.

The previous prime is 2641559. The next prime is 2641567. The reversal of 2641564 is 4651462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330192 + ... + 330199.

2^2641564 is an apocalyptic number.

It is an amenable number.

2641564 is a deficient number, since it is larger than the sum of its proper divisors (1981180).

2641564 is a wasteful number, since it uses less digits than its factorization.

2641564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660395 (or 660393 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 2641564 is about 1625.2888973964. The cubic root of 2641564 is about 138.2357518940.

The spelling of 2641564 in words is "two million, six hundred forty-one thousand, five hundred sixty-four".