523979 has 8 divisors (see below), whose sum is σ = 544320. Its totient is φ = 504136.

The previous prime is 523969. The next prime is 523987. The reversal of 523979 is 979325.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523949) 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, 4844 + ... + 4950.

It is an arithmetic number, because the mean of its divisors is an integer number (68040).

2⁵²³⁹⁷⁹ is an apocalyptic number.

523979 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

523979 is a deficient number, since it is larger than the sum of its proper divisors (20341).

523979 is a wasteful number, since it uses less digits than its factorization.

523979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249.

The product of its digits is 17010, while the sum is 35.

The square root of 523979 is about 723.8639374910. The cubic root of 523979 is about 80.6191027876.

The spelling of 523979 in words is "five hundred twenty-three thousand, nine hundred seventy-nine".