4640564 has 6 divisors (see below), whose sum is σ = 8120994. Its totient is φ = 2320280.

The previous prime is 4640557. The next prime is 4640567. The reversal of 4640564 is 4650464.

It can be written as a sum of positive squares in only one way, i.e., 3579664 + 1060900 = 1892^2 + 1030^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580067 + ... + 580074.

It is an arithmetic number, because the mean of its divisors is an integer number (1353499).

Almost surely, 2^4640564 is an apocalyptic number.

It is an amenable number.

4640564 is a deficient number, since it is larger than the sum of its proper divisors (3480430).

4640564 is a wasteful number, since it uses less digits than its factorization.

4640564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160145 (or 1160143 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 4640564 is about 2154.1968340892. The cubic root of 4640564 is about 166.7977759462.

The spelling of 4640564 in words is "four million, six hundred forty thousand, five hundred sixty-four".