73331564 has 12 divisors (see below), whose sum is σ = 135084600. Its totient is φ = 34735968.

The previous prime is 73331563. The next prime is 73331597. The reversal of 73331564 is 46513337.

It is a self number, because there is not a number n which added to its sum of digits gives 73331564.

It is not an unprimeable number, because it can be changed into a prime (73331561) 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, 482369 + ... + 482520.

It is an arithmetic number, because the mean of its divisors is an integer number (11257050).

Almost surely, 2^73331564 is an apocalyptic number.

It is an amenable number.

73331564 is a deficient number, since it is larger than the sum of its proper divisors (61753036).

73331564 is a wasteful number, since it uses less digits than its factorization.

73331564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964912 (or 964910 counting only the distinct ones).

The product of its digits is 22680, while the sum is 32.

The square root of 73331564 is about 8563.3850783437. The cubic root of 73331564 is about 418.5657122108.

The spelling of 73331564 in words is "seventy-three million, three hundred thirty-one thousand, five hundred sixty-four".