870489072 has 40 divisors (see below), whose sum is σ = 2498627280. Its totient is φ = 290162880.

The previous prime is 870489049. The next prime is 870489077. The reversal of 870489072 is 270984078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870489077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007079 + ... + 1007942.

It is an arithmetic number, because the mean of its divisors is an integer number (62465682).

Almost surely, 2^870489072 is an apocalyptic number.

It is an amenable number.

870489072 is an abundant number, since it is smaller than the sum of its proper divisors (1628138208).

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

870489072 is a wasteful number, since it uses less digits than its factorization.

870489072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015038 (or 2015026 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 870489072 is about 29504.0517895424. The cubic root of 870489072 is about 954.8191216512.

The spelling of 870489072 in words is "eight hundred seventy million, four hundred eighty-nine thousand, seventy-two".