64791357 has 8 divisors (see below), whose sum is σ = 88495680. Its totient is φ = 42140640.

The previous prime is 64791343. The next prime is 64791361. The reversal of 64791357 is 75319746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64791357 - 2⁴ = 64791341 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64791367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263257 + ... + 263502.

It is an arithmetic number, because the mean of its divisors is an integer number (11061960).

Almost surely, 2^64791357 is an apocalyptic number.

It is an amenable number.

64791357 is a deficient number, since it is larger than the sum of its proper divisors (23704323).

64791357 is a wasteful number, since it uses less digits than its factorization.

64791357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526803.

The product of its digits is 158760, while the sum is 42.

The square root of 64791357 is about 8049.3078584435. The cubic root of 64791357 is about 401.6419115115.

The spelling of 64791357 in words is "sixty-four million, seven hundred ninety-one thousand, three hundred fifty-seven".