64332613 has 16 divisors (see below), whose sum is σ = 70352640. Its totient is φ = 58622400.

The previous prime is 64332581. The next prime is 64332617. The reversal of 64332613 is 31623346.

It is a cyclic number.

It is not a de Polignac number, because 64332613 - 2⁵ = 64332581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64332617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53883 + ... + 55063.

It is an arithmetic number, because the mean of its divisors is an integer number (4397040).

Almost surely, 2^64332613 is an apocalyptic number.

It is an amenable number.

64332613 is a deficient number, since it is larger than the sum of its proper divisors (6020027).

64332613 is a wasteful number, since it uses less digits than its factorization.

64332613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308.

The product of its digits is 7776, while the sum is 28.

The square root of 64332613 is about 8020.7613728374. The cubic root of 64332613 is about 400.6917467764.

Adding to 64332613 its reverse (31623346), we get a palindrome (95955959).

The spelling of 64332613 in words is "sixty-four million, three hundred thirty-two thousand, six hundred thirteen".