799505951 has 4 divisors (see below), whose sum is σ = 799677552. Its totient is φ = 799334352.

The previous prime is 799505933. The next prime is 799506011. The reversal of 799505951 is 159505997.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 799505951 - 2¹⁴ = 799489567 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 799505951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799508951) 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, 78611 + ... + 88196.

It is an arithmetic number, because the mean of its divisors is an integer number (199919388).

Almost surely, 2^799505951 is an apocalyptic number.

799505951 is a deficient number, since it is larger than the sum of its proper divisors (171601).

799505951 is a wasteful number, since it uses less digits than its factorization.

799505951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171600.

The product of its (nonzero) digits is 637875, while the sum is 50.

The square root of 799505951 is about 28275.5362637033. The cubic root of 799505951 is about 928.1266296774.

The spelling of 799505951 in words is "seven hundred ninety-nine million, five hundred five thousand, nine hundred fifty-one".