870923 has 4 divisors (see below), whose sum is σ = 879648. Its totient is φ = 862200.

The previous prime is 870917. The next prime is 870929. The reversal of 870923 is 329078.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (870917) and next prime (870929).

It is a cyclic number.

It is not a de Polignac number, because 870923 - 2⁴ = 870907 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4211 + ... + 4412.

It is an arithmetic number, because the mean of its divisors is an integer number (219912).

2⁸⁷⁰⁹²³ is an apocalyptic number.

870923 is a deficient number, since it is larger than the sum of its proper divisors (8725).

870923 is a wasteful number, since it uses less digits than its factorization.

870923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8724.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 870923 is about 933.2325540829. The cubic root of 870923 is about 95.4977750457.

The spelling of 870923 in words is "eight hundred seventy thousand, nine hundred twenty-three".