800956799 has 4 divisors (see below), whose sum is σ = 843112440. Its totient is φ = 758801160.

The previous prime is 800956787. The next prime is 800956811. The reversal of 800956799 is 997659008.

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

It is an interprime number because it is at equal distance from previous prime (800956787) and next prime (800956811).

It is a cyclic number.

It is not a de Polignac number, because 800956799 - 2¹² = 800952703 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 800956799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800956759) 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, 21077792 + ... + 21077829.

It is an arithmetic number, because the mean of its divisors is an integer number (210778110).

Almost surely, 2^800956799 is an apocalyptic number.

800956799 is a deficient number, since it is larger than the sum of its proper divisors (42155641).

800956799 is a wasteful number, since it uses less digits than its factorization.

800956799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42155640.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The square root of 800956799 is about 28301.1801697385. The cubic root of 800956799 is about 928.6877082414.

The spelling of 800956799 in words is "eight hundred million, nine hundred fifty-six thousand, seven hundred ninety-nine".