64373953 has 16 divisors (see below), whose sum is σ = 75075840. Its totient is φ = 54061056.

The previous prime is 64373923. The next prime is 64373963. The reversal of 64373953 is 35937346.

It is not a de Polignac number, because 64373953 - 2⁵ = 64373921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64373923) 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, 76308 + ... + 77146.

It is an arithmetic number, because the mean of its divisors is an integer number (4692240).

Almost surely, 2^64373953 is an apocalyptic number.

It is an amenable number.

64373953 is a deficient number, since it is larger than the sum of its proper divisors (10701887).

64373953 is a wasteful number, since it uses less digits than its factorization.

64373953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056.

The product of its digits is 204120, while the sum is 40.

The square root of 64373953 is about 8023.3380210483. The cubic root of 64373953 is about 400.7775562862. Note that the first 3 decimals are identical.

The spelling of 64373953 in words is "sixty-four million, three hundred seventy-three thousand, nine hundred fifty-three".