891448 has 8 divisors (see below), whose sum is σ = 1671480. Its totient is φ = 445720.

The previous prime is 891439. The next prime is 891481. The reversal of 891448 is 844198.

891448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55708 + ... + 55723.

It is an arithmetic number, because the mean of its divisors is an integer number (208935).

2⁸⁹¹⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

891448 is a deficient number, since it is larger than the sum of its proper divisors (780032).

891448 is a wasteful number, since it uses less digits than its factorization.

891448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111437 (or 111433 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 891448 is about 944.1652397753. The cubic root of 891448 is about 96.2421548674.

The spelling of 891448 in words is "eight hundred ninety-one thousand, four hundred forty-eight".