506387879 has 8 divisors (see below), whose sum is σ = 528748560. Its totient is φ = 484353856.

The previous prime is 506387873. The next prime is 506387881. The reversal of 506387879 is 978783605.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 506387879 - 2¹⁶ = 506322343 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 506387879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506387873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78494 + ... + 84699.

It is an arithmetic number, because the mean of its divisors is an integer number (66093570).

Almost surely, 2^506387879 is an apocalyptic number.

506387879 is a deficient number, since it is larger than the sum of its proper divisors (22360681).

506387879 is a wasteful number, since it uses less digits than its factorization.

506387879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163329.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 506387879 is about 22503.0637691849. The cubic root of 506387879 is about 797.0662750357.

The spelling of 506387879 in words is "five hundred six million, three hundred eighty-seven thousand, eight hundred seventy-nine".