73978704 has 80 divisors (see below), whose sum is σ = 223547200. Its totient is φ = 23359104.

The previous prime is 73978673. The next prime is 73978717. The reversal of 73978704 is 40787937.

It is a self number, because there is not a number n which added to its sum of digits gives 73978704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3702 + ... + 12714.

It is an arithmetic number, because the mean of its divisors is an integer number (2794340).

Almost surely, 2^73978704 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 73978704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111773600).

73978704 is an abundant number, since it is smaller than the sum of its proper divisors (149568496).

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

73978704 is a wasteful number, since it uses less digits than its factorization.

73978704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9049 (or 9037 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 73978704 is about 8601.0873731174. The cubic root of 73978704 is about 419.7933677452.

The spelling of 73978704 in words is "seventy-three million, nine hundred seventy-eight thousand, seven hundred four".