64574379 has 12 divisors (see below), whose sum is σ = 94855800. Its totient is φ = 42319584.

The previous prime is 64574359. The next prime is 64574383. The reversal of 64574379 is 97347546.

64574379 is a `hidden beast` number, since 6 + 4 + 574 + 3 + 79 = 666.

It is not a de Polignac number, because 64574379 - 2⁸ = 64574123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64574309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60274 + ... + 61335.

It is an arithmetic number, because the mean of its divisors is an integer number (7904650).

Almost surely, 2^64574379 is an apocalyptic number.

64574379 is a deficient number, since it is larger than the sum of its proper divisors (30281421).

64574379 is a wasteful number, since it uses less digits than its factorization.

64574379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121674 (or 121671 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 64574379 is about 8035.8185021813. The cubic root of 64574379 is about 401.1930608930.

The spelling of 64574379 in words is "sixty-four million, five hundred seventy-four thousand, three hundred seventy-nine".