870912005 has 8 divisors (see below), whose sum is σ = 1049782272. Its totient is φ = 693604368.

The previous prime is 870911983. The next prime is 870912017. The reversal of 870912005 is 500219078.

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

It is a cyclic number.

It is not a de Polignac number, because 870912005 - 2²² = 866717701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389429 + ... + 391658.

It is an arithmetic number, because the mean of its divisors is an integer number (131222784).

Almost surely, 2^870912005 is an apocalyptic number.

It is an amenable number.

870912005 is a deficient number, since it is larger than the sum of its proper divisors (178870267).

870912005 is a wasteful number, since it uses less digits than its factorization.

870912005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781315.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 870912005 is about 29511.2182906772. The cubic root of 870912005 is about 954.9737317227.

The spelling of 870912005 in words is "eight hundred seventy million, nine hundred twelve thousand, five".