799897 has 8 divisors (see below), whose sum is σ = 920000. Its totient is φ = 681264.

The previous prime is 799891. The next prime is 799921. The reversal of 799897 is 798997.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-799897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 799897.

It is not an unprimeable number, because it can be changed into a prime (799891) 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, 1354 + ... + 1852.

It is an arithmetic number, because the mean of its divisors is an integer number (115000).

2⁷⁹⁹⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

799897 is a deficient number, since it is larger than the sum of its proper divisors (120103).

799897 is a wasteful number, since it uses less digits than its factorization.

799897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735.

The product of its digits is 285768, while the sum is 49.

The square root of 799897 is about 894.3696103961. The cubic root of 799897 is about 92.8277924708.

Subtracting from 799897 its reverse (798997), we obtain a square (900 = 30²).

The spelling of 799897 in words is "seven hundred ninety-nine thousand, eight hundred ninety-seven".