799687951 has 4 divisors (see below), whose sum is σ = 799775872. Its totient is φ = 799600032.

The previous prime is 799687949. The next prime is 799688023. The reversal of 799687951 is 159786997.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 799687951 - 2¹ = 799687949 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 799687951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799687451) 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, 28506 + ... + 49111.

It is an arithmetic number, because the mean of its divisors is an integer number (199943968).

Almost surely, 2^799687951 is an apocalyptic number.

799687951 is a deficient number, since it is larger than the sum of its proper divisors (87921).

799687951 is a wasteful number, since it uses less digits than its factorization.

799687951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87920.

The product of its digits is 8573040, while the sum is 61.

The square root of 799687951 is about 28278.7544103343. The cubic root of 799687951 is about 928.1970507628.

The spelling of 799687951 in words is "seven hundred ninety-nine million, six hundred eighty-seven thousand, nine hundred fifty-one".