520930929 has 4 divisors (see below), whose sum is σ = 694574576. Its totient is φ = 347287284.

The previous prime is 520930903. The next prime is 520930957. The reversal of 520930929 is 929039025.

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 not a de Polignac number, because 520930929 - 2⁸ = 520930673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520930229) 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, 86821819 + ... + 86821824.

It is an arithmetic number, because the mean of its divisors is an integer number (173643644).

Almost surely, 2^520930929 is an apocalyptic number.

It is an amenable number.

520930929 is a deficient number, since it is larger than the sum of its proper divisors (173643647).

520930929 is a wasteful number, since it uses less digits than its factorization.

520930929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173643646.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 520930929 is about 22823.9113431506. The cubic root of 520930929 is about 804.6247387421.

The spelling of 520930929 in words is "five hundred twenty million, nine hundred thirty thousand, nine hundred twenty-nine".