870916 has 12 divisors (see below), whose sum is σ = 1532160. Its totient is φ = 433160.

The previous prime is 870911. The next prime is 870917. The reversal of 870916 is 619078.

It is not an unprimeable number, because it can be changed into a prime (870911) by changing a digit.

870916 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501 + ... + 1411.

It is an arithmetic number, because the mean of its divisors is an integer number (127680).

2⁸⁷⁰⁹¹⁶ is an apocalyptic number.

It is an amenable number.

870916 is a deficient number, since it is larger than the sum of its proper divisors (661244).

870916 is a wasteful number, since it uses less digits than its factorization.

870916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154 (or 1152 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 870916 is about 933.2288036704. The cubic root of 870916 is about 95.4975191922.

The spelling of 870916 in words is "eight hundred seventy thousand, nine hundred sixteen".