520379 has 2 divisors, whose sum is σ = 520380. Its totient is φ = 520378.

The previous prime is 520369. The next prime is 520381. The reversal of 520379 is 973025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520379 - 2⁴ = 520363 is a prime.

Together with 520381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (520309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260189 + 260190.

It is an arithmetic number, because the mean of its divisors is an integer number (260190).

2⁵²⁰³⁷⁹ is an apocalyptic number.

520379 is a deficient number, since it is larger than the sum of its proper divisors (1).

520379 is an equidigital number, since it uses as much as digits as its factorization.

520379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 520379 is about 721.3729964450. The cubic root of 520379 is about 80.4340470307.

The spelling of 520379 in words is "five hundred twenty thousand, three hundred seventy-nine".