73890680 has 16 divisors (see below), whose sum is σ = 166254120. Its totient is φ = 29556256.

The previous prime is 73890659. The next prime is 73890709. The reversal of 73890680 is 8609837.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923594 + ... + 923673.

Almost surely, 2^73890680 is an apocalyptic number.

It is an amenable number.

73890680 is an abundant number, since it is smaller than the sum of its proper divisors (92363440).

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

73890680 is a wasteful number, since it uses less digits than its factorization.

73890680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847278 (or 1847274 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 73890680 is about 8595.9688226517. The cubic root of 73890680 is about 419.6268037887.

The spelling of 73890680 in words is "seventy-three million, eight hundred ninety thousand, six hundred eighty".