799875787 has 4 divisors (see below), whose sum is σ = 799999200. Its totient is φ = 799752376.

The previous prime is 799875781. The next prime is 799875793. The reversal of 799875787 is 787578997.

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

It is an interprime number because it is at equal distance from previous prime (799875781) and next prime (799875793).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-799875787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (799875781) 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, 51412 + ... + 65137.

It is an arithmetic number, because the mean of its divisors is an integer number (199999800).

Almost surely, 2^799875787 is an apocalyptic number.

799875787 is a deficient number, since it is larger than the sum of its proper divisors (123413).

799875787 is a wasteful number, since it uses less digits than its factorization.

799875787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123412.

The product of its digits is 62233920, while the sum is 67.

The square root of 799875787 is about 28282.0753658567. The cubic root of 799875787 is about 928.2697187629.

The spelling of 799875787 in words is "seven hundred ninety-nine million, eight hundred seventy-five thousand, seven hundred eighty-seven".