870917212 has 48 divisors (see below), whose sum is σ = 1810569600. Its totient is φ = 362093760.

The previous prime is 870917207. The next prime is 870917233. The reversal of 870917212 is 212719078.

870917212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6283 + ... + 42205.

It is an arithmetic number, because the mean of its divisors is an integer number (37720200).

Almost surely, 2^870917212 is an apocalyptic number.

It is an amenable number.

870917212 is an abundant number, since it is smaller than the sum of its proper divisors (939652388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

870917212 is a wasteful number, since it uses less digits than its factorization.

870917212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35986 (or 35984 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 870917212 is about 29511.3065112340. The cubic root of 870917212 is about 954.9756349147.

It can be divided in two parts, 8709 and 17212, that added together give a square (25921 = 161²).

The spelling of 870917212 in words is "eight hundred seventy million, nine hundred seventeen thousand, two hundred twelve".