799901391 has 8 divisors (see below), whose sum is σ = 1129272624. Its totient is φ = 501898880.

The previous prime is 799901371. The next prime is 799901411. The reversal of 799901391 is 193109997.

It is an interprime number because it is at equal distance from previous prime (799901371) and next prime (799901411).

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 799901391 - 2¹⁵ = 799868623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 799901391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799901321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7842120 + ... + 7842221.

It is an arithmetic number, because the mean of its divisors is an integer number (141159078).

Almost surely, 2^799901391 is an apocalyptic number.

799901391 is a deficient number, since it is larger than the sum of its proper divisors (329371233).

799901391 is a wasteful number, since it uses less digits than its factorization.

799901391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15684361.

The product of its (nonzero) digits is 137781, while the sum is 48.

The square root of 799901391 is about 28282.5280164274. The cubic root of 799901391 is about 928.2796232859.

The spelling of 799901391 in words is "seven hundred ninety-nine million, nine hundred one thousand, three hundred ninety-one".