507913 has 4 divisors (see below), whose sum is σ = 580480. Its totient is φ = 435348.

The previous prime is 507907. The next prime is 507917. The reversal of 507913 is 319705.

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 507913 - 2⁹ = 507401 is a prime.

It is a Duffinian number.

507913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (507917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36273 + ... + 36286.

It is an arithmetic number, because the mean of its divisors is an integer number (145120).

2⁵⁰⁷⁹¹³ is an apocalyptic number.

It is an amenable number.

507913 is a deficient number, since it is larger than the sum of its proper divisors (72567).

507913 is an equidigital number, since it uses as much as digits as its factorization.

507913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72566.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 507913 is about 712.6801526632. The cubic root of 507913 is about 79.7865664998.

The spelling of 507913 in words is "five hundred seven thousand, nine hundred thirteen".