868479 has 8 divisors (see below), whose sum is σ = 1226160. Its totient is φ = 544896.

The previous prime is 868459. The next prime is 868487. The reversal of 868479 is 974868.

It is a happy number.

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

It is not a de Polignac number, because 868479 - 2¹¹ = 866431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 868479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8464 + ... + 8565.

It is an arithmetic number, because the mean of its divisors is an integer number (153270).

2⁸⁶⁸⁴⁷⁹ is an apocalyptic number.

868479 is a deficient number, since it is larger than the sum of its proper divisors (357681).

868479 is a wasteful number, since it uses less digits than its factorization.

868479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17049.

The product of its digits is 96768, while the sum is 42.

The square root of 868479 is about 931.9222070538. The cubic root of 868479 is about 95.4083621570.

The spelling of 868479 in words is "eight hundred sixty-eight thousand, four hundred seventy-nine".