64372765 has 8 divisors (see below), whose sum is σ = 77425920. Its totient is φ = 51379152.

The previous prime is 64372757. The next prime is 64372769. The reversal of 64372765 is 56727346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64372765 - 2³ = 64372757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64372769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12469 + ... + 16858.

It is an arithmetic number, because the mean of its divisors is an integer number (9678240).

Almost surely, 2^64372765 is an apocalyptic number.

It is an amenable number.

64372765 is a deficient number, since it is larger than the sum of its proper divisors (13053155).

64372765 is a wasteful number, since it uses less digits than its factorization.

64372765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29771.

The product of its digits is 211680, while the sum is 40.

The square root of 64372765 is about 8023.2639866827. The cubic root of 64372765 is about 400.7750908653.

The spelling of 64372765 in words is "sixty-four million, three hundred seventy-two thousand, seven hundred sixty-five".