73806656 has 112 divisors (see below), whose sum is σ = 193560192. Its totient is φ = 27033600.

The previous prime is 73806643. The next prime is 73806661. The reversal of 73806656 is 65660837.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83336 + ... + 84216.

It is an arithmetic number, because the mean of its divisors is an integer number (1728216).

Almost surely, 2^73806656 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 73806656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96780096).

73806656 is an abundant number, since it is smaller than the sum of its proper divisors (119753536).

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

73806656 is a wasteful number, since it uses less digits than its factorization.

73806656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 73806656 is about 8591.0800252355. The cubic root of 73806656 is about 419.4676854095.

The spelling of 73806656 in words is "seventy-three million, eight hundred six thousand, six hundred fifty-six".