64597423 has 8 divisors (see below), whose sum is σ = 71053776. Its totient is φ = 58723720.

The previous prime is 64597381. The next prime is 64597451. The reversal of 64597423 is 32479546.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-64597423 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64597453) 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, 22936 + ... + 25597.

It is an arithmetic number, because the mean of its divisors is an integer number (8881722).

Almost surely, 2^64597423 is an apocalyptic number.

64597423 is a deficient number, since it is larger than the sum of its proper divisors (6456353).

64597423 is an equidigital number, since it uses as much as digits as its factorization.

64597423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48566 (or 48544 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 64597423 is about 8037.2522045784. The cubic root of 64597423 is about 401.2407784425.

The spelling of 64597423 in words is "sixty-four million, five hundred ninety-seven thousand, four hundred twenty-three".