73786564 has 12 divisors (see below), whose sum is σ = 131054224. Its totient is φ = 36342504.

The previous prime is 73786549. The next prime is 73786567. The reversal of 73786564 is 46568737.

It is a super-3 number, since 3×73786564³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (73786567) 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, 137394 + ... + 137929.

Almost surely, 2^73786564 is an apocalyptic number.

It is an amenable number.

73786564 is a deficient number, since it is larger than the sum of its proper divisors (57267660).

73786564 is a wasteful number, since it uses less digits than its factorization.

73786564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275394 (or 275392 counting only the distinct ones).

The product of its digits is 846720, while the sum is 46.

The square root of 73786564 is about 8589.9105932483. The cubic root of 73786564 is about 419.4296187903.

The spelling of 73786564 in words is "seventy-three million, seven hundred eighty-six thousand, five hundred sixty-four".