870671 has 4 divisors (see below), whose sum is σ = 882672. Its totient is φ = 858672.

The previous prime is 870643. The next prime is 870679. The reversal of 870671 is 176078.

870671 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 a cyclic number.

It is not a de Polignac number, because 870671 - 2¹⁸ = 608527 is a prime.

It is an Ulam 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 (870679) 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, 5891 + ... + 6036.

It is an arithmetic number, because the mean of its divisors is an integer number (220668).

2⁸⁷⁰⁶⁷¹ is an apocalyptic number.

870671 is a deficient number, since it is larger than the sum of its proper divisors (12001).

870671 is a wasteful number, since it uses less digits than its factorization.

870671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12000.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 870671 is about 933.0975297363. The cubic root of 870671 is about 95.4885634542.

The spelling of 870671 in words is "eight hundred seventy thousand, six hundred seventy-one".