64683874 has 4 divisors (see below), whose sum is σ = 97025814. Its totient is φ = 32341936.

The previous prime is 64683863. The next prime is 64683917. The reversal of 64683874 is 47838646.

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

It can be written as a sum of positive squares in only one way, i.e., 47403225 + 17280649 = 6885^2 + 4157^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16170967 + ... + 16170970.

Almost surely, 2^64683874 is an apocalyptic number.

64683874 is a deficient number, since it is larger than the sum of its proper divisors (32341940).

64683874 is a wasteful number, since it uses less digits than its factorization.

64683874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32341939.

The product of its digits is 774144, while the sum is 46.

The square root of 64683874 is about 8042.6285504181. The cubic root of 64683874 is about 401.4196927201.

The spelling of 64683874 in words is "sixty-four million, six hundred eighty-three thousand, eight hundred seventy-four".