799471979 has 4 divisors (see below), whose sum is σ = 799640784. Its totient is φ = 799303176.

The previous prime is 799471957. The next prime is 799471993. The reversal of 799471979 is 979174997.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 799471979 - 2²⁴ = 782694763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (799071979) 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, 77087 + ... + 86840.

It is an arithmetic number, because the mean of its divisors is an integer number (199910196).

Almost surely, 2^799471979 is an apocalyptic number.

799471979 is a deficient number, since it is larger than the sum of its proper divisors (168805).

799471979 is a wasteful number, since it uses less digits than its factorization.

799471979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168804.

The product of its digits is 9001692, while the sum is 62.

The square root of 799471979 is about 28274.9355260096. The cubic root of 799471979 is about 928.1134837405.

The spelling of 799471979 in words is "seven hundred ninety-nine million, four hundred seventy-one thousand, nine hundred seventy-nine".