79080981 has 8 divisors (see below), whose sum is σ = 120504384. Its totient is φ = 45189120.

The previous prime is 79080961. The next prime is 79080997. The reversal of 79080981 is 18908097.

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

It is not a de Polignac number, because 79080981 - 2¹¹ = 79078933 is a prime.

It is a super-2 number, since 2×79080981² = 12507603111844722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79080961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1882860 + ... + 1882901.

It is an arithmetic number, because the mean of its divisors is an integer number (15063048).

Almost surely, 2^79080981 is an apocalyptic number.

It is an amenable number.

79080981 is a deficient number, since it is larger than the sum of its proper divisors (41423403).

79080981 is a wasteful number, since it uses less digits than its factorization.

79080981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765771.

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 79080981 is about 8892.7487876359. The cubic root of 79080981 is about 429.2306072116.

The spelling of 79080981 in words is "seventy-nine million, eighty thousand, nine hundred eighty-one".