80979455 has 8 divisors (see below), whose sum is σ = 100526400. Its totient is φ = 62549536.

The previous prime is 80979439. The next prime is 80979461. The reversal of 80979455 is 55497908.

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

It is a cyclic number.

It is not a de Polignac number, because 80979455 - 2⁴ = 80979439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279095 + ... + 279384.

It is an arithmetic number, because the mean of its divisors is an integer number (12565800).

Almost surely, 2^80979455 is an apocalyptic number.

80979455 is a deficient number, since it is larger than the sum of its proper divisors (19546945).

80979455 is a wasteful number, since it uses less digits than its factorization.

80979455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558513.

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 80979455 is about 8998.8585387259. The cubic root of 80979455 is about 432.6382864959.

The spelling of 80979455 in words is "eighty million, nine hundred seventy-nine thousand, four hundred fifty-five".