870012671 has 4 divisors (see below), whose sum is σ = 949104744. Its totient is φ = 790920600.

The previous prime is 870012667. The next prime is 870012707. The reversal of 870012671 is 176210078.

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 870012671 - 2² = 870012667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870012601) 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, 39546020 + ... + 39546041.

It is an arithmetic number, because the mean of its divisors is an integer number (237276186).

Almost surely, 2^870012671 is an apocalyptic number.

870012671 is a deficient number, since it is larger than the sum of its proper divisors (79092073).

870012671 is a wasteful number, since it uses less digits than its factorization.

870012671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79092072.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 870012671 is about 29495.9772002895. The cubic root of 870012671 is about 954.6449054909.

The spelling of 870012671 in words is "eight hundred seventy million, twelve thousand, six hundred seventy-one".