520979379 has 16 divisors (see below), whose sum is σ = 701955072. Its totient is φ = 343681088.

The previous prime is 520979377. The next prime is 520979387. The reversal of 520979379 is 973979025.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 520979379 - 2¹ = 520979377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520979377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114502 + ... + 118964.

It is an arithmetic number, because the mean of its divisors is an integer number (43872192).

Almost surely, 2^520979379 is an apocalyptic number.

520979379 is a deficient number, since it is larger than the sum of its proper divisors (180975693).

520979379 is a wasteful number, since it uses less digits than its factorization.

520979379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4866.

The product of its (nonzero) digits is 1071630, while the sum is 51.

The square root of 520979379 is about 22824.9727053506. The cubic root of 520979379 is about 804.6496830984.

The spelling of 520979379 in words is "five hundred twenty million, nine hundred seventy-nine thousand, three hundred seventy-nine".