520117677 has 12 divisors (see below), whose sum is σ = 769605564. Its totient is φ = 338287680.

The previous prime is 520117657. The next prime is 520117681. The reversal of 520117677 is 776711025.

It can be written as a sum of positive squares in 2 ways, for example, as 6687396 + 513430281 = 2586^2 + 22659^2 .

It is not a de Polignac number, because 520117677 - 2¹⁵ = 520084909 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520117657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 704398 + ... + 705135.

It is an arithmetic number, because the mean of its divisors is an integer number (64133797).

Almost surely, 2^520117677 is an apocalyptic number.

It is an amenable number.

520117677 is a deficient number, since it is larger than the sum of its proper divisors (249487887).

520117677 is a wasteful number, since it uses less digits than its factorization.

520117677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409580 (or 1409577 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 36.

The square root of 520117677 is about 22806.0885949345. The cubic root of 520117677 is about 804.2058070073.

The spelling of 520117677 in words is "five hundred twenty million, one hundred seventeen thousand, six hundred seventy-seven".