799971 has 8 divisors (see below), whose sum is σ = 1070784. Its totient is φ = 531240.

The previous prime is 799961. The next prime is 799979. The reversal of 799971 is 179997.

799971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 799971 - 2¹⁵ = 767203 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 799971.

It is not an unprimeable number, because it can be changed into a prime (799979) 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, 1116 + ... + 1686.

It is an arithmetic number, because the mean of its divisors is an integer number (133848).

2⁷⁹⁹⁹⁷¹ is an apocalyptic number.

799971 is a deficient number, since it is larger than the sum of its proper divisors (270813).

799971 is a wasteful number, since it uses less digits than its factorization.

799971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041.

The product of its digits is 35721, while the sum is 42.

The square root of 799971 is about 894.4109793602. The cubic root of 799971 is about 92.8306549414.

It can be divided in two parts, 799 and 971, that added together give a triangular number (1770 = T₅₉).

The spelling of 799971 in words is "seven hundred ninety-nine thousand, nine hundred seventy-one".