521079 has 16 divisors (see below), whose sum is σ = 774144. Its totient is φ = 309600.

The previous prime is 521063. The next prime is 521107. The reversal of 521079 is 970125.

521079 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 521079 - 2⁴ = 521063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 994 + ... + 1424.

It is an arithmetic number, because the mean of its divisors is an integer number (48384).

2⁵²¹⁰⁷⁹ is an apocalyptic number.

521079 is a deficient number, since it is larger than the sum of its proper divisors (253065).

521079 is a wasteful number, since it uses less digits than its factorization.

521079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 521079 is about 721.8580192808. The cubic root of 521079 is about 80.4700967852.

The spelling of 521079 in words is "five hundred twenty-one thousand, seventy-nine".