520460873 has 4 divisors (see below), whose sum is σ = 527590548. Its totient is φ = 513331200.

The previous prime is 520460869. The next prime is 520460893. The reversal of 520460873 is 378064025.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 229007689 + 291453184 = 15133^2 + 17072^2 .

It is a cyclic number.

It is not a de Polignac number, because 520460873 - 2² = 520460869 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520460893) 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, 3564728 + ... + 3564873.

It is an arithmetic number, because the mean of its divisors is an integer number (131897637).

Almost surely, 2^520460873 is an apocalyptic number.

It is an amenable number.

520460873 is a deficient number, since it is larger than the sum of its proper divisors (7129675).

520460873 is an equidigital number, since it uses as much as digits as its factorization.

520460873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7129674.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 520460873 is about 22813.6115729185. The cubic root of 520460873 is about 804.3826513030.

The spelling of 520460873 in words is "five hundred twenty million, four hundred sixty thousand, eight hundred seventy-three".