2064564 has 18 divisors (see below), whose sum is σ = 5218850. Its totient is φ = 688176.

The previous prime is 2064551. The next prime is 2064571. The reversal of 2064564 is 4654602.

It is a happy number.

2064564 is a `hidden beast` number, since 206 + 456 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1822500 + 242064 = 1350^2 + 492^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28639 + ... + 28710.

2^2064564 is an apocalyptic number.

It is an amenable number.

2064564 is an abundant number, since it is smaller than the sum of its proper divisors (3154286).

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

2064564 is a wasteful number, since it uses less digits than its factorization.

2064564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57359 (or 57354 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2064564 is about 1436.8590745094. The cubic root of 2064564 is about 127.3335313052. Note that the first 3 decimals are identical.

It can be divided in two parts, 2064 and 564, that added together give a triangular number (2628 = T₇₂).

The spelling of 2064564 in words is "two million, sixty-four thousand, five hundred sixty-four".