799879247 has 4 divisors (see below), whose sum is σ = 827461320. Its totient is φ = 772297176.

The previous prime is 799879243. The next prime is 799879259. The reversal of 799879247 is 742978997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742978997 = 811 ⋅916127.

It is a cyclic number.

It is not a de Polignac number, because 799879247 - 2² = 799879243 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 799879247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799879243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13790993 + ... + 13791050.

It is an arithmetic number, because the mean of its divisors is an integer number (206865330).

Almost surely, 2^799879247 is an apocalyptic number.

799879247 is a deficient number, since it is larger than the sum of its proper divisors (27582073).

799879247 is a wasteful number, since it uses less digits than its factorization.

799879247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27582072.

The product of its digits is 16003008, while the sum is 62.

The square root of 799879247 is about 28282.1365352761. The cubic root of 799879247 is about 928.2710572243.

The spelling of 799879247 in words is "seven hundred ninety-nine million, eight hundred seventy-nine thousand, two hundred forty-seven".