520749698 has 16 divisors (see below), whose sum is σ = 909558720. Its totient is φ = 218967216.

The previous prime is 520749683. The next prime is 520749709. The reversal of 520749698 is 896947025.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350168 + ... + 351651.

It is an arithmetic number, because the mean of its divisors is an integer number (56847420).

Almost surely, 2^520749698 is an apocalyptic number.

520749698 is a deficient number, since it is larger than the sum of its proper divisors (388809022).

520749698 is a wasteful number, since it uses less digits than its factorization.

520749698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701881.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 520749698 is about 22819.9407974692. The cubic root of 520749698 is about 804.5314187185.

The spelling of 520749698 in words is "five hundred twenty million, seven hundred forty-nine thousand, six hundred ninety-eight".