799521143 has 4 divisors (see below), whose sum is σ = 800731368. Its totient is φ = 798310920.

The previous prime is 799521137. The next prime is 799521167. The reversal of 799521143 is 341125997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341125997 = 10867 ⋅31391.

It is a cyclic number.

It is not a de Polignac number, because 799521143 - 2⁴ = 799521127 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 799521143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799521103) 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, 604121 + ... + 605442.

It is an arithmetic number, because the mean of its divisors is an integer number (200182842).

Almost surely, 2^799521143 is an apocalyptic number.

799521143 is a deficient number, since it is larger than the sum of its proper divisors (1210225).

799521143 is a wasteful number, since it uses less digits than its factorization.

799521143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210224.

The product of its digits is 68040, while the sum is 41.

The square root of 799521143 is about 28275.8049045469. The cubic root of 799521143 is about 928.1325083122.

The spelling of 799521143 in words is "seven hundred ninety-nine million, five hundred twenty-one thousand, one hundred forty-three".