64379013 has 4 divisors (see below), whose sum is σ = 85838688. Its totient is φ = 42919340.

The previous prime is 64378991. The next prime is 64379023. The reversal of 64379013 is 31097346.

64379013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64379013 - 2¹² = 64374917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64379023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10729833 + ... + 10729838.

It is an arithmetic number, because the mean of its divisors is an integer number (21459672).

Almost surely, 2^64379013 is an apocalyptic number.

It is an amenable number.

64379013 is a deficient number, since it is larger than the sum of its proper divisors (21459675).

64379013 is a wasteful number, since it uses less digits than its factorization.

64379013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21459674.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 64379013 is about 8023.6533449545. The cubic root of 64379013 is about 400.7880568132.

The spelling of 64379013 in words is "sixty-four million, three hundred seventy-nine thousand, thirteen".