64357715 has 4 divisors (see below), whose sum is σ = 77229264. Its totient is φ = 51486168.

The previous prime is 64357691. The next prime is 64357717. The reversal of 64357715 is 51775346.

64357715 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.

It is a cyclic number.

It is not a de Polignac number, because 64357715 - 2¹⁴ = 64341331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64357717) 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, 6435767 + ... + 6435776.

It is an arithmetic number, because the mean of its divisors is an integer number (19307316).

Almost surely, 2^64357715 is an apocalyptic number.

64357715 is a deficient number, since it is larger than the sum of its proper divisors (12871549).

64357715 is a wasteful number, since it uses less digits than its factorization.

64357715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12871548.

The product of its digits is 88200, while the sum is 38.

The square root of 64357715 is about 8022.3260342621. The cubic root of 64357715 is about 400.7438554236.

The spelling of 64357715 in words is "sixty-four million, three hundred fifty-seven thousand, seven hundred fifteen".