520830797 has 4 divisors (see below), whose sum is σ = 521547936. Its totient is φ = 520113660.

The previous prime is 520830787. The next prime is 520830799. The reversal of 520830797 is 797038025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 520830797 - 2²² = 516636493 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 (520830799) 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, 357479 + ... + 358932.

It is an arithmetic number, because the mean of its divisors is an integer number (130386984).

Almost surely, 2^520830797 is an apocalyptic number.

It is an amenable number.

520830797 is a deficient number, since it is larger than the sum of its proper divisors (717139).

520830797 is an equidigital number, since it uses as much as digits as its factorization.

520830797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717138.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 520830797 is about 22821.7176610351. The cubic root of 520830797 is about 804.5731811410.

The spelling of 520830797 in words is "five hundred twenty million, eight hundred thirty thousand, seven hundred ninety-seven".