870207009 has 8 divisors (see below), whose sum is σ = 1326029760. Its totient is φ = 497261136.

The previous prime is 870207007. The next prime is 870207017. The reversal of 870207009 is 900702078.

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

It is not a de Polignac number, because 870207009 - 2¹ = 870207007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (870207007) 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, 20719194 + ... + 20719235.

It is an arithmetic number, because the mean of its divisors is an integer number (165753720).

Almost surely, 2^870207009 is an apocalyptic number.

It is an amenable number.

870207009 is a deficient number, since it is larger than the sum of its proper divisors (455822751).

870207009 is a wasteful number, since it uses less digits than its factorization.

870207009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41438439.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 870207009 is about 29499.2713299837. The cubic root of 870207009 is about 954.7159810724.

The spelling of 870207009 in words is "eight hundred seventy million, two hundred seven thousand, nine".