64475683 has 6 divisors (see below), whose sum is σ = 68048124. Its totient is φ = 61081884.

The previous prime is 64475633. The next prime is 64475687. The reversal of 64475683 is 38657446.

It is not a de Polignac number, because 64475683 - 2²¹ = 62378531 is a prime.

It is a super-2 number, since 2×64475683² = 8314227396632978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64475687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88941 + ... + 89662.

It is an arithmetic number, because the mean of its divisors is an integer number (11341354).

Almost surely, 2^64475683 is an apocalyptic number.

64475683 is a deficient number, since it is larger than the sum of its proper divisors (3572441).

64475683 is a wasteful number, since it uses less digits than its factorization.

64475683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178641 (or 178622 counting only the distinct ones).

The product of its digits is 483840, while the sum is 43.

The square root of 64475683 is about 8029.6751490954. The cubic root of 64475683 is about 400.9885611047.

The spelling of 64475683 in words is "sixty-four million, four hundred seventy-five thousand, six hundred eighty-three".