6564730 has 16 divisors (see below), whose sum is σ = 12224520. Its totient is φ = 2535232.

The previous prime is 6564707. The next prime is 6564749. The reversal of 6564730 is 374656.

It can be written as a sum of positive squares in 4 ways, for example, as 4635409 + 1929321 = 2153^2 + 1389^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6564692 and 6564701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11029 + ... + 11608.

Almost surely, 2^6564730 is an apocalyptic number.

6564730 is a deficient number, since it is larger than the sum of its proper divisors (5659790).

6564730 is a wasteful number, since it uses less digits than its factorization.

6564730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22673.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 6564730 is about 2562.1729059531. The cubic root of 6564730 is about 187.2430138635.

The spelling of 6564730 in words is "six million, five hundred sixty-four thousand, seven hundred thirty".