64573396 has 12 divisors (see below), whose sum is σ = 113060052. Its totient is φ = 32270528.

The previous prime is 64573393. The next prime is 64573427. The reversal of 64573396 is 69337546.

It can be written as a sum of positive squares in 2 ways, for example, as 48860100 + 15713296 = 6990^2 + 3964^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64573393) 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, 12126 + ... + 16618.

It is an arithmetic number, because the mean of its divisors is an integer number (9421671).

Almost surely, 2^64573396 is an apocalyptic number.

It is an amenable number.

64573396 is a deficient number, since it is larger than the sum of its proper divisors (48486656).

64573396 is a wasteful number, since it uses less digits than its factorization.

64573396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8090 (or 8088 counting only the distinct ones).

The product of its digits is 408240, while the sum is 43.

The square root of 64573396 is about 8035.7573382974. The cubic root of 64573396 is about 401.1910251280.

The spelling of 64573396 in words is "sixty-four million, five hundred seventy-three thousand, three hundred ninety-six".