64326513 has 16 divisors (see below), whose sum is σ = 87512256. Its totient is φ = 42018240.

The previous prime is 64326491. The next prime is 64326517. The reversal of 64326513 is 31562346.

It is not a de Polignac number, because 64326513 - 2⁸ = 64326257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64326517) 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, 62995 + ... + 64007.

It is an arithmetic number, because the mean of its divisors is an integer number (5469516).

Almost surely, 2^64326513 is an apocalyptic number.

It is an amenable number.

64326513 is a deficient number, since it is larger than the sum of its proper divisors (23185743).

64326513 is a wasteful number, since it uses less digits than its factorization.

64326513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424.

The product of its digits is 12960, while the sum is 30.

The square root of 64326513 is about 8020.3811006710. The cubic root of 64326513 is about 400.6790818837.

Adding to 64326513 its reverse (31562346), we get a palindrome (95888859).

The spelling of 64326513 in words is "sixty-four million, three hundred twenty-six thousand, five hundred thirteen".