520708431 has 8 divisors (see below), whose sum is σ = 724464000. Its totient is φ = 332045912.

The previous prime is 520708421. The next prime is 520708439. The reversal of 520708431 is 134807025.

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 520708431 - 2⁵ = 520708399 is a prime.

It is a super-2 number, since 2×520708431² = 542274540228963522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520708439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3773181 + ... + 3773318.

It is an arithmetic number, because the mean of its divisors is an integer number (90558000).

Almost surely, 2^520708431 is an apocalyptic number.

520708431 is a deficient number, since it is larger than the sum of its proper divisors (203755569).

520708431 is a wasteful number, since it uses less digits than its factorization.

520708431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7546525.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 520708431 is about 22819.0365922841. The cubic root of 520708431 is about 804.5101663617.

The spelling of 520708431 in words is "five hundred twenty million, seven hundred eight thousand, four hundred thirty-one".