64912974 has 16 divisors (see below), whose sum is σ = 148372608. Its totient is φ = 18546552.

The previous prime is 64912973. The next prime is 64912999. The reversal of 64912974 is 47921946.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1545547 = 64912974 / (6 + 4 + 9 + 1 + 2 + 9 + 7 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64912973) 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, 772732 + ... + 772815.

It is an arithmetic number, because the mean of its divisors is an integer number (9273288).

Almost surely, 2^64912974 is an apocalyptic number.

64912974 is an abundant number, since it is smaller than the sum of its proper divisors (83459634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64912974 is a wasteful number, since it uses less digits than its factorization.

64912974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545559.

The product of its digits is 108864, while the sum is 42.

The square root of 64912974 is about 8056.8588171818. The cubic root of 64912974 is about 401.8930558818.

The spelling of 64912974 in words is "sixty-four million, nine hundred twelve thousand, nine hundred seventy-four".