64653357 has 4 divisors (see below), whose sum is σ = 86204480. Its totient is φ = 43102236.

The previous prime is 64653353. The next prime is 64653367. The reversal of 64653357 is 75335646.

64653357 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 not a de Polignac number, because 64653357 - 2² = 64653353 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 (64653353) 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, 10775557 + ... + 10775562.

It is an arithmetic number, because the mean of its divisors is an integer number (21551120).

Almost surely, 2^64653357 is an apocalyptic number.

It is an amenable number.

64653357 is a deficient number, since it is larger than the sum of its proper divisors (21551123).

64653357 is a wasteful number, since it uses less digits than its factorization.

64653357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21551122.

The product of its digits is 226800, while the sum is 39.

The square root of 64653357 is about 8040.7311234738. The cubic root of 64653357 is about 401.3565546148.

The spelling of 64653357 in words is "sixty-four million, six hundred fifty-three thousand, three hundred fifty-seven".