870171278 has 16 divisors (see below), whose sum is σ = 1332009360. Its totient is φ = 426194496.

The previous prime is 870171251. The next prime is 870171293. The reversal of 870171278 is 872171078.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63626 + ... + 76082.

It is an arithmetic number, because the mean of its divisors is an integer number (83250585).

Almost surely, 2^870171278 is an apocalyptic number.

870171278 is a deficient number, since it is larger than the sum of its proper divisors (461838082).

870171278 is a wasteful number, since it uses less digits than its factorization.

870171278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13171.

The product of its (nonzero) digits is 43904, while the sum is 41.

The square root of 870171278 is about 29498.6656986380. The cubic root of 870171278 is about 954.7029139044.

The spelling of 870171278 in words is "eight hundred seventy million, one hundred seventy-one thousand, two hundred seventy-eight".