891459 has 16 divisors (see below), whose sum is σ = 1335840. Its totient is φ = 587520.

The previous prime is 891439. The next prime is 891481. The reversal of 891459 is 954198.

891459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 891459 - 2⁵ = 891427 is a prime.

891459 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 891459.

It is not an unprimeable number, because it can be changed into a prime (891409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3579 + ... + 3819.

It is an arithmetic number, because the mean of its divisors is an integer number (83490).

2⁸⁹¹⁴⁵⁹ is an apocalyptic number.

891459 is a deficient number, since it is larger than the sum of its proper divisors (444381).

891459 is a wasteful number, since it uses less digits than its factorization.

891459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 381 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 891459 is about 944.1710650089. The cubic root of 891459 is about 96.2425507250.

The spelling of 891459 in words is "eight hundred ninety-one thousand, four hundred fifty-nine".