64316745 has 12 divisors (see below), whose sum is σ = 111482436. Its totient is φ = 34302240.

The previous prime is 64316713. The next prime is 64316761. The reversal of 64316745 is 54761346.

It is a happy number.

64316745 is a `hidden beast` number, since 643 + 1 + 6 + 7 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11128896 + 53187849 = 3336^2 + 7293^2 .

It is not a de Polignac number, because 64316745 - 2⁵ = 64316713 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 714586 + ... + 714675.

It is an arithmetic number, because the mean of its divisors is an integer number (9290203).

Almost surely, 2^64316745 is an apocalyptic number.

It is an amenable number.

64316745 is a deficient number, since it is larger than the sum of its proper divisors (47165691).

64316745 is a wasteful number, since it uses less digits than its factorization.

64316745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429272 (or 1429269 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 64316745 is about 8019.7721289323. The cubic root of 64316745 is about 400.6587997781.

The spelling of 64316745 in words is "sixty-four million, three hundred sixteen thousand, seven hundred forty-five".