80915604 has 144 divisors (see below), whose sum is σ = 250252800. Its totient is φ = 19863360.

The previous prime is 80915599. The next prime is 80915617. The reversal of 80915604 is 40651908.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192907 + ... + 193325.

Almost surely, 2^80915604 is an apocalyptic number.

80915604 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80915604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125126400).

80915604 is an abundant number, since it is smaller than the sum of its proper divisors (169337196).

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

80915604 is a wasteful number, since it uses less digits than its factorization.

80915604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 80915604 is about 8995.3101113858. The cubic root of 80915604 is about 432.5245471494.

It can be divided in two parts, 8091 and 5604, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 80915604 in words is "eighty million, nine hundred fifteen thousand, six hundred four".