520936837 has 2 divisors, whose sum is σ = 520936838. Its totient is φ = 520936836.

The previous prime is 520936807. The next prime is 520936853. The reversal of 520936837 is 738639025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 479347236 + 41589601 = 21894^2 + 6449^2 .

It is a cyclic number.

It is not a de Polignac number, because 520936837 - 2⁷ = 520936709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520936793 and 520936802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520936807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260468418 + 260468419.

It is an arithmetic number, because the mean of its divisors is an integer number (260468419).

Almost surely, 2^520936837 is an apocalyptic number.

It is an amenable number.

520936837 is a deficient number, since it is larger than the sum of its proper divisors (1).

520936837 is an equidigital number, since it uses as much as digits as its factorization.

520936837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 520936837 is about 22824.0407684529. The cubic root of 520936837 is about 804.6277805433.

The spelling of 520936837 in words is "five hundred twenty million, nine hundred thirty-six thousand, eight hundred thirty-seven".