799997 has 4 divisors (see below), whose sum is σ = 872736. Its totient is φ = 727260.

The previous prime is 799993. The next prime is 799999.

799997 is nontrivially palindromic in base 10.

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 799997 - 2² = 799993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 799997.

It is not an unprimeable number, because it can be changed into a prime (799991) 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, 36353 + ... + 36374.

It is an arithmetic number, because the mean of its divisors is an integer number (218184).

2⁷⁹⁹⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

799997 is a deficient number, since it is larger than the sum of its proper divisors (72739).

799997 is a wasteful number, since it uses less digits than its factorization.

799997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72738.

The product of its digits is 321489, while the sum is 50.

The square root of 799997 is about 894.4255139474. The cubic root of 799997 is about 92.8316606324.

The spelling of 799997 in words is "seven hundred ninety-nine thousand, nine hundred ninety-seven".