73890784 has 24 divisors (see below), whose sum is σ = 158698008. Its totient is φ = 33586560.

The previous prime is 73890779. The next prime is 73890797. The reversal of 73890784 is 48709837.

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, 104607 + ... + 105310.

It is an arithmetic number, because the mean of its divisors is an integer number (6612417).

Almost surely, 2^73890784 is an apocalyptic number.

It is an amenable number.

73890784 is an abundant number, since it is smaller than the sum of its proper divisors (84807224).

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

73890784 is a wasteful number, since it uses less digits than its factorization.

73890784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209938 (or 209930 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 73890784 is about 8595.9748719968. The cubic root of 73890784 is about 419.6270006613.

The spelling of 73890784 in words is "seventy-three million, eight hundred ninety thousand, seven hundred eighty-four".