870389448 has 32 divisors (see below), whose sum is σ = 2176968960. Its totient is φ = 289997120.

The previous prime is 870389431. The next prime is 870389453. The reversal of 870389448 is 844983078.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 870389448.

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, 55186 + ... + 69182.

It is an arithmetic number, because the mean of its divisors is an integer number (68030280).

Almost surely, 2^870389448 is an apocalyptic number.

It is an amenable number.

870389448 is an abundant number, since it is smaller than the sum of its proper divisors (1306579512).

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

870389448 is a wasteful number, since it uses less digits than its factorization.

870389448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16597 (or 16593 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The square root of 870389448 is about 29502.3634307491. The cubic root of 870389448 is about 954.7826951823.

The spelling of 870389448 in words is "eight hundred seventy million, three hundred eighty-nine thousand, four hundred forty-eight".