870674009 has 4 divisors (see below), whose sum is σ = 873183504. Its totient is φ = 868164516.

The previous prime is 870673957. The next prime is 870674041. The reversal of 870674009 is 900476078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 900476078 = 2 ⋅450238039.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-870674009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870674059) 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, 1254227 + ... + 1254920.

It is an arithmetic number, because the mean of its divisors is an integer number (218295876).

Almost surely, 2^870674009 is an apocalyptic number.

It is an amenable number.

870674009 is a deficient number, since it is larger than the sum of its proper divisors (2509495).

870674009 is a wasteful number, since it uses less digits than its factorization.

870674009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509494.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 870674009 is about 29507.1857180586. The cubic root of 870674009 is about 954.8867345545.

The spelling of 870674009 in words is "eight hundred seventy million, six hundred seventy-four thousand, nine".