918879 has 8 divisors (see below), whose sum is σ = 1319472. Its totient is φ = 565440.

The previous prime is 918877. The next prime is 918889. The reversal of 918879 is 978819.

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

It is not a de Polignac number, because 918879 - 2¹ = 918877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 918879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918877) 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, 11742 + ... + 11819.

It is an arithmetic number, because the mean of its divisors is an integer number (164934).

2⁹¹⁸⁸⁷⁹ is an apocalyptic number.

918879 is a deficient number, since it is larger than the sum of its proper divisors (400593).

918879 is a wasteful number, since it uses less digits than its factorization.

918879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23577.

The product of its digits is 36288, while the sum is 42.

The square root of 918879 is about 958.5817649006. The cubic root of 918879 is about 97.2193639553.

The spelling of 918879 in words is "nine hundred eighteen thousand, eight hundred seventy-nine".