513427 has 2 divisors, whose sum is σ = 513428. Its totient is φ = 513426.

The previous prime is 513419. The next prime is 513431. The reversal of 513427 is 724315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513427 - 2³ = 513419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 513398 and 513407.

It is not a weakly prime, because it can be changed into another prime (513407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256713 + 256714.

It is an arithmetic number, because the mean of its divisors is an integer number (256714).

2⁵¹³⁴²⁷ is an apocalyptic number.

513427 is a deficient number, since it is larger than the sum of its proper divisors (1).

513427 is an equidigital number, since it uses as much as digits as its factorization.

513427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 22.

The square root of 513427 is about 716.5382055411. The cubic root of 513427 is about 80.0742539747.

The spelling of 513427 in words is "five hundred thirteen thousand, four hundred twenty-seven".