520127879 has 4 divisors (see below), whose sum is σ = 520562160. Its totient is φ = 519693600.

The previous prime is 520127857. The next prime is 520127899. The reversal of 520127879 is 978721025.

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 520127879 - 2²⁰ = 519079303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520127809) 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, 215339 + ... + 217740.

It is an arithmetic number, because the mean of its divisors is an integer number (130140540).

Almost surely, 2^520127879 is an apocalyptic number.

520127879 is a deficient number, since it is larger than the sum of its proper divisors (434281).

520127879 is a wasteful number, since it uses less digits than its factorization.

520127879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434280.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 520127879 is about 22806.3122621786. The cubic root of 520127879 is about 804.2110650828.

The spelling of 520127879 in words is "five hundred twenty million, one hundred twenty-seven thousand, eight hundred seventy-nine".