799856 has 10 divisors (see below), whose sum is σ = 1549752. Its totient is φ = 399920.

The previous prime is 799853. The next prime is 799859. The reversal of 799856 is 658997.

It is an interprime number because it is at equal distance from previous prime (799853) and next prime (799859).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24980 + ... + 25011.

2⁷⁹⁹⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

799856 is a deficient number, since it is larger than the sum of its proper divisors (749896).

799856 is a wasteful number, since it uses less digits than its factorization.

799856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49999 (or 49993 counting only the distinct ones).

The product of its digits is 136080, while the sum is 44.

The square root of 799856 is about 894.3466889300. The cubic root of 799856 is about 92.8262064314.

The spelling of 799856 in words is "seven hundred ninety-nine thousand, eight hundred fifty-six".