870448 has 10 divisors (see below), whose sum is σ = 1686524. Its totient is φ = 435216.

The previous prime is 870437. The next prime is 870461. The reversal of 870448 is 844078.

It is an unprimeable number.

870448 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27186 + ... + 27217.

2⁸⁷⁰⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

870448 is a deficient number, since it is larger than the sum of its proper divisors (816076).

870448 is a wasteful number, since it uses less digits than its factorization.

870448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54411 (or 54405 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 870448 is about 932.9780276084. The cubic root of 870448 is about 95.4804104443.

The spelling of 870448 in words is "eight hundred seventy thousand, four hundred forty-eight".