870942012 has 48 divisors (see below), whose sum is σ = 2123100672. Its totient is φ = 277358400.

The previous prime is 870941999. The next prime is 870942041. The reversal of 870942012 is 210249078.

It is a happy number.

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, 340137 + ... + 342687.

It is an arithmetic number, because the mean of its divisors is an integer number (44231264).

Almost surely, 2^870942012 is an apocalyptic number.

It is an amenable number.

870942012 is an abundant number, since it is smaller than the sum of its proper divisors (1252158660).

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

870942012 is a wasteful number, since it uses less digits than its factorization.

870942012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3818 (or 3816 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 870942012 is about 29511.7266861836. The cubic root of 870942012 is about 954.9846993702.

It can be divided in two parts, 8709 and 42012, that added together give a triangular number (50721 = T₃₁₈).

The spelling of 870942012 in words is "eight hundred seventy million, nine hundred forty-two thousand, twelve".