870617231 has 4 divisors (see below), whose sum is σ = 949764264. Its totient is φ = 791470200.

The previous prime is 870617191. The next prime is 870617249. The reversal of 870617231 is 132716078.

870617231 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 870617231 - 2¹⁰ = 870616207 is a prime.

It is a super-2 number, since 2×870617231² = 1515948725828214722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 870617191 and 870617200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870617291) 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, 39573500 + ... + 39573521.

It is an arithmetic number, because the mean of its divisors is an integer number (237441066).

Almost surely, 2^870617231 is an apocalyptic number.

870617231 is a deficient number, since it is larger than the sum of its proper divisors (79147033).

870617231 is a wasteful number, since it uses less digits than its factorization.

870617231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79147032.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 870617231 is about 29506.2235977429. The cubic root of 870617231 is about 954.8659775559.

The spelling of 870617231 in words is "eight hundred seventy million, six hundred seventeen thousand, two hundred thirty-one".