79280971 has 12 divisors (see below), whose sum is σ = 100609560. Its totient is φ = 61776960.

The previous prime is 79280959. The next prime is 79280987. The reversal of 79280971 is 17908297.

It is a happy number.

It is not a de Polignac number, because 79280971 - 2¹¹ = 79278923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79220971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73006 + ... + 74083.

It is an arithmetic number, because the mean of its divisors is an integer number (8384130).

Almost surely, 2^79280971 is an apocalyptic number.

79280971 is a deficient number, since it is larger than the sum of its proper divisors (21328589).

79280971 is a wasteful number, since it uses less digits than its factorization.

79280971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147114 (or 147107 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 79280971 is about 8903.9862421277. The cubic root of 79280971 is about 429.5921335313.

The spelling of 79280971 in words is "seventy-nine million, two hundred eighty thousand, nine hundred seventy-one".