80978 has 8 divisors (see below), whose sum is σ = 127920. Its totient is φ = 38340.

The previous prime is 80963. The next prime is 80989. The reversal of 80978 is 87908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1028 + ... + 1103.

It is an arithmetic number, because the mean of its divisors is an integer number (15990).

2⁸⁰⁹⁷⁸ is an apocalyptic number.

80978 is a deficient number, since it is larger than the sum of its proper divisors (46942).

80978 is a wasteful number, since it uses less digits than its factorization.

80978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 80978 is about 284.5663367301. The cubic root of 80978 is about 43.2635695335.

The spelling of 80978 in words is "eighty thousand, nine hundred seventy-eight".