80704372 has 72 divisors (see below), whose sum is σ = 177625224. Its totient is φ = 31868928.

The previous prime is 80704339. The next prime is 80704391. The reversal of 80704372 is 27340708.

It can be written as a sum of positive squares in 4 ways, for example, as 46294416 + 34409956 = 6804^2 + 5866^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176368 + ... + 176824.

It is an arithmetic number, because the mean of its divisors is an integer number (2467017).

Almost surely, 2^80704372 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 80704372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88812612).

80704372 is an abundant number, since it is smaller than the sum of its proper divisors (96920852).

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

80704372 is a wasteful number, since it uses less digits than its factorization.

80704372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 80704372 is about 8983.5612092310. The cubic root of 80704372 is about 432.1478474860.

The spelling of 80704372 in words is "eighty million, seven hundred four thousand, three hundred seventy-two".