64572067 has 16 divisors (see below), whose sum is σ = 78413760. Its totient is φ = 51988608.

The previous prime is 64572061. The next prime is 64572149. The reversal of 64572067 is 76027546.

It is not a de Polignac number, because 64572067 - 2¹¹ = 64570019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64572061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3213 + ... + 11809.

It is an arithmetic number, because the mean of its divisors is an integer number (4900860).

Almost surely, 2^64572067 is an apocalyptic number.

64572067 is a deficient number, since it is larger than the sum of its proper divisors (13841693).

64572067 is a wasteful number, since it uses less digits than its factorization.

64572067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8670.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 64572067 is about 8035.6746449816. The cubic root of 64572067 is about 401.1882727741.

The spelling of 64572067 in words is "sixty-four million, five hundred seventy-two thousand, sixty-seven".