64356723 has 6 divisors (see below), whose sum is σ = 92959724. Its totient is φ = 42904476.

The previous prime is 64356703. The next prime is 64356739. The reversal of 64356723 is 32765346.

64356723 is a `hidden beast` number, since 643 + 5 + 6 + 7 + 2 + 3 = 666.

64356723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64356723 - 2¹⁰ = 64355699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64356703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3575365 + ... + 3575382.

Almost surely, 2^64356723 is an apocalyptic number.

64356723 is a deficient number, since it is larger than the sum of its proper divisors (28603001).

64356723 is a wasteful number, since it uses less digits than its factorization.

64356723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7150753 (or 7150750 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 64356723 is about 8022.2642065691. The cubic root of 64356723 is about 400.7417964115.

The spelling of 64356723 in words is "sixty-four million, three hundred fifty-six thousand, seven hundred twenty-three".