520867 has 2 divisors, whose sum is σ = 520868. Its totient is φ = 520866.

The previous prime is 520853. The next prime is 520889. The reversal of 520867 is 768025.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520867 is a prime.

It is not a weakly prime, because it can be changed into another prime (520837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260433 + 260434.

It is an arithmetic number, because the mean of its divisors is an integer number (260434).

2⁵²⁰⁸⁶⁷ is an apocalyptic number.

520867 is a deficient number, since it is larger than the sum of its proper divisors (1).

520867 is an equidigital number, since it uses as much as digits as its factorization.

520867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 520867 is about 721.7111610610. The cubic root of 520867 is about 80.4591822696.

The spelling of 520867 in words is "five hundred twenty thousand, eight hundred sixty-seven".