80878236 has 24 divisors (see below), whose sum is σ = 189922320. Its totient is φ = 26787072.

The previous prime is 80878223. The next prime is 80878241. The reversal of 80878236 is 63287808.

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, 19581 + ... + 23348.

It is an arithmetic number, because the mean of its divisors is an integer number (7913430).

Almost surely, 2^80878236 is an apocalyptic number.

It is an amenable number.

80878236 is an abundant number, since it is smaller than the sum of its proper divisors (109044084).

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

80878236 is a wasteful number, since it uses less digits than its factorization.

80878236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43093 (or 43091 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 80878236 is about 8993.2327891587. The cubic root of 80878236 is about 432.4579548600.

The spelling of 80878236 in words is "eighty million, eight hundred seventy-eight thousand, two hundred thirty-six".