879427 has 8 divisors (see below), whose sum is σ = 939600. Its totient is φ = 823072.

The previous prime is 879413. The next prime is 879449. The reversal of 879427 is 724978.

It is a happy number.

It is not a de Polignac number, because 879427 - 2⁷ = 879299 is a prime.

It is a Duffinian number.

Its product of digits (28224) is a multiple of the sum of its prime divisors (196).

It is not an unprimeable number, because it can be changed into a prime (879457) 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, 4824 + ... + 5002.

It is an arithmetic number, because the mean of its divisors is an integer number (117450).

2⁸⁷⁹⁴²⁷ is an apocalyptic number.

879427 is a deficient number, since it is larger than the sum of its proper divisors (60173).

879427 is an equidigital number, since it uses as much as digits as its factorization.

879427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 196 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 879427 is about 937.7776922064. Note that the first 3 decimals coincide. The cubic root of 879427 is about 95.8075935073.

Subtracting from 879427 its reverse (724978), we obtain a square (154449 = 393²).

The spelling of 879427 in words is "eight hundred seventy-nine thousand, four hundred twenty-seven".