64568712 has 32 divisors (see below), whose sum is σ = 173839680. Its totient is φ = 19867200.

The previous prime is 64568689. The next prime is 64568723. The reversal of 64568712 is 21786546.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103164 + ... + 103787.

It is an arithmetic number, because the mean of its divisors is an integer number (5432490).

Almost surely, 2^64568712 is an apocalyptic number.

It is an amenable number.

64568712 is an abundant number, since it is smaller than the sum of its proper divisors (109270968).

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

64568712 is a wasteful number, since it uses less digits than its factorization.

64568712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206973 (or 206969 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 64568712 is about 8035.4658856845. The cubic root of 64568712 is about 401.1813244137.

The spelling of 64568712 in words is "sixty-four million, five hundred sixty-eight thousand, seven hundred twelve".