64622613 has 16 divisors (see below), whose sum is σ = 94602816. Its totient is φ = 38912640.

The previous prime is 64622599. The next prime is 64622647. The reversal of 64622613 is 31622646.

It is not a de Polignac number, because 64622613 - 2⁸ = 64622357 is a prime.

It is a super-2 number, since 2×64622613² = 8352164221895538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64622653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1056 + ... + 11417.

It is an arithmetic number, because the mean of its divisors is an integer number (5912676).

Almost surely, 2^64622613 is an apocalyptic number.

It is an amenable number.

64622613 is a deficient number, since it is larger than the sum of its proper divisors (29980203).

64622613 is a wasteful number, since it uses less digits than its factorization.

64622613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12644.

The product of its digits is 10368, while the sum is 30.

The square root of 64622613 is about 8038.8191296981. The cubic root of 64622613 is about 401.2929267648.

The spelling of 64622613 in words is "sixty-four million, six hundred twenty-two thousand, six hundred thirteen".