80746680 has 128 divisors (see below), whose sum is σ = 279982080. Its totient is φ = 18247680.

The previous prime is 80746657. The next prime is 80746681. The reversal of 80746680 is 8664708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80746681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80985 + ... + 81975.

It is an arithmetic number, because the mean of its divisors is an integer number (2187360).

Almost surely, 2^80746680 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 80746680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139991040).

80746680 is an abundant number, since it is smaller than the sum of its proper divisors (199235400).

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

80746680 is a wasteful number, since it uses less digits than its factorization.

80746680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1105 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 80746680 is about 8985.9156461654. The cubic root of 80746680 is about 432.2233498687.

The spelling of 80746680 in words is "eighty million, seven hundred forty-six thousand, six hundred eighty".