859479 has 4 divisors (see below), whose sum is σ = 1145976. Its totient is φ = 572984.

The previous prime is 859477. The next prime is 859493. The reversal of 859479 is 974958.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 859479 - 2¹ = 859477 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 859479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143244 + ... + 143249.

It is an arithmetic number, because the mean of its divisors is an integer number (286494).

2⁸⁵⁹⁴⁷⁹ is an apocalyptic number.

859479 is a deficient number, since it is larger than the sum of its proper divisors (286497).

859479 is a wasteful number, since it uses less digits than its factorization.

859479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286496.

The product of its digits is 90720, while the sum is 42.

The square root of 859479 is about 927.0809026185. The cubic root of 859479 is about 95.0776465843.

The spelling of 859479 in words is "eight hundred fifty-nine thousand, four hundred seventy-nine".