64374761 has 4 divisors (see below), whose sum is σ = 70227024. Its totient is φ = 58522500.

The previous prime is 64374743. The next prime is 64374763. The reversal of 64374761 is 16747346.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64374761 - 2⁶ = 64374697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64374763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2926115 + ... + 2926136.

It is an arithmetic number, because the mean of its divisors is an integer number (17556756).

Almost surely, 2^64374761 is an apocalyptic number.

It is an amenable number.

64374761 is a deficient number, since it is larger than the sum of its proper divisors (5852263).

64374761 is a wasteful number, since it uses less digits than its factorization.

64374761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5852262.

The product of its digits is 84672, while the sum is 38.

The square root of 64374761 is about 8023.3883739976. The cubic root of 64374761 is about 400.7792330871.

The spelling of 64374761 in words is "sixty-four million, three hundred seventy-four thousand, seven hundred sixty-one".