80079281 has 4 divisors (see below), whose sum is σ = 84294000. Its totient is φ = 75864564.

The previous prime is 80079277. The next prime is 80079283. The reversal of 80079281 is 18297008.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80079281 - 2² = 80079277 is a prime.

It is a super-2 number, since 2×80079281² = 12825382490953922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80079283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2107331 + ... + 2107368.

It is an arithmetic number, because the mean of its divisors is an integer number (21073500).

Almost surely, 2^80079281 is an apocalyptic number.

It is an amenable number.

80079281 is a deficient number, since it is larger than the sum of its proper divisors (4214719).

80079281 is a wasteful number, since it uses less digits than its factorization.

80079281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214718.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 80079281 is about 8948.7027551484. The cubic root of 80079281 is about 431.0292291265.

The spelling of 80079281 in words is "eighty million, seventy-nine thousand, two hundred eighty-one".