80321976 has 96 divisors (see below), whose sum is σ = 259578000. Its totient is φ = 22946112.

The previous prime is 80321963. The next prime is 80321981. The reversal of 80321976 is 67912308.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 80321976.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6790 + ... + 14378.

Almost surely, 2^80321976 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 80321976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129789000).

80321976 is an abundant number, since it is smaller than the sum of its proper divisors (179256024).

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

80321976 is a wasteful number, since it uses less digits than its factorization.

80321976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7618 (or 7601 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 80321976 is about 8962.2528417804. The cubic root of 80321976 is about 431.4642277781.

The spelling of 80321976 in words is "eighty million, three hundred twenty-one thousand, nine hundred seventy-six".