879739 has 8 divisors (see below), whose sum is σ = 1015520. Its totient is φ = 746496.

The previous prime is 879721. The next prime is 879743. The reversal of 879739 is 937978.

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

It is a 10-Lehmer number, since φ(879739) divides (879739-1)¹⁰.

It is a cyclic number.

It is not a de Polignac number, because 879739 - 2⁵ = 879707 is a prime.

It is a Duffinian number.

879739 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 879695 and 879704.

It is not an unprimeable number, because it can be changed into a prime (879709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187 + ... + 1339.

It is an arithmetic number, because the mean of its divisors is an integer number (126940).

2⁸⁷⁹⁷³⁹ is an apocalyptic number.

879739 is a deficient number, since it is larger than the sum of its proper divisors (135781).

879739 is a wasteful number, since it uses less digits than its factorization.

879739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269.

The product of its digits is 95256, while the sum is 43.

The square root of 879739 is about 937.9440281808. The cubic root of 879739 is about 95.8189222607.

It can be divided in two parts, 8797 and 39, that added together give a square (8836 = 94²).

The spelling of 879739 in words is "eight hundred seventy-nine thousand, seven hundred thirty-nine".