64875974 has 4 divisors (see below), whose sum is σ = 97313964. Its totient is φ = 32437986.

The previous prime is 64875971. The next prime is 64875977. The reversal of 64875974 is 47957846.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (64875971) and next prime (64875977).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64875971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16218992 + ... + 16218995.

It is an arithmetic number, because the mean of its divisors is an integer number (24328491).

Almost surely, 2^64875974 is an apocalyptic number.

64875974 is a deficient number, since it is larger than the sum of its proper divisors (32437990).

64875974 is a wasteful number, since it uses less digits than its factorization.

64875974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32437989.

The product of its digits is 1693440, while the sum is 50.

The square root of 64875974 is about 8054.5623096479. The cubic root of 64875974 is about 401.8166825041.

The spelling of 64875974 in words is "sixty-four million, eight hundred seventy-five thousand, nine hundred seventy-four".