870951 has 4 divisors (see below), whose sum is σ = 1161272. Its totient is φ = 580632.

The previous prime is 870931. The next prime is 870953. The reversal of 870951 is 159078.

870951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 870951 - 2⁷ = 870823 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870953) 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, 145156 + ... + 145161.

It is an arithmetic number, because the mean of its divisors is an integer number (290318).

2⁸⁷⁰⁹⁵¹ is an apocalyptic number.

870951 is a deficient number, since it is larger than the sum of its proper divisors (290321).

870951 is a wasteful number, since it uses less digits than its factorization.

870951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290320.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 870951 is about 933.2475555821. The cubic root of 870951 is about 95.4987984462.

The spelling of 870951 in words is "eight hundred seventy thousand, nine hundred fifty-one".