73690624 has 80 divisors (see below), whose sum is σ = 174319200. Its totient is φ = 30449664.

The previous prime is 73690613. The next prime is 73690633. The reversal of 73690624 is 42609637.

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, 103582 + ... + 104290.

It is an arithmetic number, because the mean of its divisors is an integer number (2178990).

Almost surely, 2^73690624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73690624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87159600).

73690624 is an abundant number, since it is smaller than the sum of its proper divisors (100628576).

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

73690624 is an equidigital number, since it uses as much as digits as its factorization.

73690624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 73690624 is about 8584.3243181977. The cubic root of 73690624 is about 419.2477540144.

The spelling of 73690624 in words is "seventy-three million, six hundred ninety thousand, six hundred twenty-four".