870808089 has 8 divisors (see below), whose sum is σ = 1161215392. Its totient is φ = 580469760.

The previous prime is 870808079. The next prime is 870808097. The reversal of 870808089 is 980808078.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-870808089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (870808039) 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, 33834 + ... + 53724.

It is an arithmetic number, because the mean of its divisors is an integer number (145151924).

Almost surely, 2^870808089 is an apocalyptic number.

It is an amenable number.

870808089 is a deficient number, since it is larger than the sum of its proper divisors (290407303).

870808089 is a wasteful number, since it uses less digits than its factorization.

870808089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34487.

The product of its (nonzero) digits is 258048, while the sum is 48.

The square root of 870808089 is about 29509.4576195497. The cubic root of 870808089 is about 954.9357481694.

The spelling of 870808089 in words is "eight hundred seventy million, eight hundred eight thousand, eighty-nine".