870492171 has 8 divisors (see below), whose sum is σ = 1160819200. Its totient is φ = 580246632.

The previous prime is 870492151. The next prime is 870492317. The reversal of 870492171 is 171294078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 870492171 - 2⁹ = 870491659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870492151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11826 + ... + 43368.

It is an arithmetic number, because the mean of its divisors is an integer number (145102400).

Almost surely, 2^870492171 is an apocalyptic number.

870492171 is a deficient number, since it is larger than the sum of its proper divisors (290327029).

870492171 is a wasteful number, since it uses less digits than its factorization.

870492171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40745.

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 870492171 is about 29504.1043077061. The cubic root of 870492171 is about 954.8202547234.

The spelling of 870492171 in words is "eight hundred seventy million, four hundred ninety-two thousand, one hundred seventy-one".