891054 has 32 divisors (see below), whose sum is σ = 2052000. Its totient is φ = 286272.

The previous prime is 891049. The next prime is 891061. The reversal of 891054 is 450198.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1282 + ... + 1850.

It is an arithmetic number, because the mean of its divisors is an integer number (64125).

2⁸⁹¹⁰⁵⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 891054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1026000).

891054 is an abundant number, since it is smaller than the sum of its proper divisors (1160946).

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

891054 is a wasteful number, since it uses less digits than its factorization.

891054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 891054 is about 943.9565667974. The cubic root of 891054 is about 96.2279738208.

The spelling of 891054 in words is "eight hundred ninety-one thousand, fifty-four".