64736474 has 16 divisors (see below), whose sum is σ = 106176096. Its totient is φ = 29358000.

The previous prime is 64736447. The next prime is 64736489. The reversal of 64736474 is 47463746.

It is a super-2 number, since 2×64736474² = 8381622131905352, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7124 + ... + 13424.

It is an arithmetic number, because the mean of its divisors is an integer number (6636006).

Almost surely, 2^64736474 is an apocalyptic number.

64736474 is a deficient number, since it is larger than the sum of its proper divisors (41439622).

64736474 is a wasteful number, since it uses less digits than its factorization.

64736474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6781.

The product of its digits is 338688, while the sum is 41.

The square root of 64736474 is about 8045.8979610731. The cubic root of 64736474 is about 401.5284728211.

The spelling of 64736474 in words is "sixty-four million, seven hundred thirty-six thousand, four hundred seventy-four".