515879 has 8 divisors (see below), whose sum is σ = 635040. Its totient is φ = 408096.

The previous prime is 515873. The next prime is 515887. The reversal of 515879 is 978515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 515879 - 2¹⁶ = 450343 is a prime.

It is a super-2 number, since 2×515879² = 532262285282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2744 + ... + 2925.

It is an arithmetic number, because the mean of its divisors is an integer number (79380).

2⁵¹⁵⁸⁷⁹ is an apocalyptic number.

515879 is a deficient number, since it is larger than the sum of its proper divisors (119161).

515879 is a wasteful number, since it uses less digits than its factorization.

515879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5689.

The product of its digits is 12600, while the sum is 35.

The square root of 515879 is about 718.2471719401. The cubic root of 515879 is about 80.2015231788.

The spelling of 515879 in words is "five hundred fifteen thousand, eight hundred seventy-nine".