799856431 has 8 divisors (see below), whose sum is σ = 872784000. Its totient is φ = 726964440.

The previous prime is 799856423. The next prime is 799856437. The reversal of 799856431 is 134658997.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 799856431 - 2³ = 799856423 is a prime.

It is a super-2 number, since 2×799856431² = 1279540620424115522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799856437) 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, 64470 + ... + 75868.

It is an arithmetic number, because the mean of its divisors is an integer number (109098000).

Almost surely, 2^799856431 is an apocalyptic number.

799856431 is a deficient number, since it is larger than the sum of its proper divisors (72927569).

799856431 is a wasteful number, since it uses less digits than its factorization.

799856431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17789.

The product of its digits is 1632960, while the sum is 52.

The square root of 799856431 is about 28281.7331682484. The cubic root of 799856431 is about 928.2622310447.

The spelling of 799856431 in words is "seven hundred ninety-nine million, eight hundred fifty-six thousand, four hundred thirty-one".