80795980 has 48 divisors (see below), whose sum is σ = 180684000. Its totient is φ = 30260736.

The previous prime is 80795977. The next prime is 80795983. The reversal of 80795980 is 8959708.

It is an interprime number because it is at equal distance from previous prime (80795977) and next prime (80795983).

It is a self number, because there is not a number n which added to its sum of digits gives 80795980.

It is not an unprimeable number, because it can be changed into a prime (80795983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32626 + ... + 35014.

It is an arithmetic number, because the mean of its divisors is an integer number (3764250).

Almost surely, 2^80795980 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 80795980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90342000).

80795980 is an abundant number, since it is smaller than the sum of its proper divisors (99888020).

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

80795980 is a wasteful number, since it uses less digits than its factorization.

80795980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506 (or 2504 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 80795980 is about 8988.6584093512. The cubic root of 80795980 is about 432.3112968322.

The spelling of 80795980 in words is "eighty million, seven hundred ninety-five thousand, nine hundred eighty".