891396 has 36 divisors (see below), whose sum is σ = 2459184. Its totient is φ = 270000.

The previous prime is 891391. The next prime is 891409. The reversal of 891396 is 693198.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 891396.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 891396.

It is not an unprimeable number, because it can be changed into a prime (891391) by changing a digit.

891396 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 730 + ... + 1521.

2⁸⁹¹³⁹⁶ is an apocalyptic number.

It is an amenable number.

891396 is an abundant number, since it is smaller than the sum of its proper divisors (1567788).

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

891396 is a wasteful number, since it uses less digits than its factorization.

891396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272 (or 2267 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 891396 is about 944.1377018211. The cubic root of 891396 is about 96.2402834966.

It can be divided in two parts, 8913 and 96, that added together give a palindrome (9009).

The spelling of 891396 in words is "eight hundred ninety-one thousand, three hundred ninety-six".