73420564 has 24 divisors (see below), whose sum is σ = 147119168. Its totient is φ = 31406400.

The previous prime is 73420549. The next prime is 73420597. The reversal of 73420564 is 46502437.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14647 + ... + 19009.

Almost surely, 2^73420564 is an apocalyptic number.

It is an amenable number.

73420564 is an abundant number, since it is smaller than the sum of its proper divisors (73698604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73420564 is a wasteful number, since it uses less digits than its factorization.

73420564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4975 (or 4973 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 73420564 is about 8568.5800457252. The cubic root of 73420564 is about 418.7349766943.

It can be divided in two parts, 73420 and 564, that added together give a square (73984 = 272²).

The spelling of 73420564 in words is "seventy-three million, four hundred twenty thousand, five hundred sixty-four".