870709 has 8 divisors (see below), whose sum is σ = 1002240. Its totient is φ = 740976.

The previous prime is 870703. The next prime is 870731. The reversal of 870709 is 907078.

870709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 870709 - 2⁹ = 870197 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 852 + ... + 1570.

It is an arithmetic number, because the mean of its divisors is an integer number (125280).

2⁸⁷⁰⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

870709 is a deficient number, since it is larger than the sum of its proper divisors (131531).

870709 is a wasteful number, since it uses less digits than its factorization.

870709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 870709 is about 933.1178918015. The cubic root of 870709 is about 95.4899526175.

The spelling of 870709 in words is "eight hundred seventy thousand, seven hundred nine".