80685888 has 112 divisors (see below), whose sum is σ = 226649280. Its totient is φ = 25288704.

The previous prime is 80685853. The next prime is 80685919. The reversal of 80685888 is 88858608.

It is a self number, because there is not a number n which added to its sum of digits gives 80685888.

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, 239256 + ... + 239592.

Almost surely, 2^80685888 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 80685888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113324640).

80685888 is an abundant number, since it is smaller than the sum of its proper divisors (145963392).

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

80685888 is a wasteful number, since it uses less digits than its factorization.

80685888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 51.

The square root of 80685888 is about 8982.5323823519. The cubic root of 80685888 is about 432.1148528641.

The spelling of 80685888 in words is "eighty million, six hundred eighty-five thousand, eight hundred eighty-eight".