80680992 has 192 divisors, whose sum is σ = 261273600. Its totient is φ = 21288960.

The previous prime is 80680981. The next prime is 80681023. The reversal of 80680992 is 29908608.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 906484 + ... + 906572.

It is an arithmetic number, because the mean of its divisors is an integer number (1360800).

Almost surely, 2^80680992 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 80680992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130636800).

80680992 is an abundant number, since it is smaller than the sum of its proper divisors (180592608).

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

80680992 is a wasteful number, since it uses less digits than its factorization.

80680992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 80680992 is about 8982.2598492807. The cubic root of 80680992 is about 432.1061124793.

The spelling of 80680992 in words is "eighty million, six hundred eighty thousand, nine hundred ninety-two".