879729 has 8 divisors (see below), whose sum is σ = 1182720. Its totient is φ = 581616.

The previous prime is 879721. The next prime is 879743. The reversal of 879729 is 927978.

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

It is not a de Polignac number, because 879729 - 2³ = 879721 is a prime.

It is a super-2 number, since 2×879729² = 1547846226882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (879721) 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, 774 + ... + 1535.

It is an arithmetic number, because the mean of its divisors is an integer number (147840).

2⁸⁷⁹⁷²⁹ is an apocalyptic number.

It is an amenable number.

879729 is a deficient number, since it is larger than the sum of its proper divisors (302991).

879729 is a wasteful number, since it uses less digits than its factorization.

879729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439.

The product of its digits is 63504, while the sum is 42.

The square root of 879729 is about 937.9386973571. The cubic root of 879729 is about 95.8185592011.

The spelling of 879729 in words is "eight hundred seventy-nine thousand, seven hundred twenty-nine".