891995 has 8 divisors (see below), whose sum is σ = 1152816. Its totient is φ = 658656.

The previous prime is 891991. The next prime is 891997. The reversal of 891995 is 599198.

891995 is nontrivially palindromic in base 8.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 891995 - 2² = 891991 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 891995.

It is not an unprimeable number, because it can be changed into a prime (891991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6797 + ... + 6926.

It is an arithmetic number, because the mean of its divisors is an integer number (144102).

2⁸⁹¹⁹⁹⁵ is an apocalyptic number.

891995 is a deficient number, since it is larger than the sum of its proper divisors (260821).

891995 is a wasteful number, since it uses less digits than its factorization.

891995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13741.

The product of its digits is 29160, while the sum is 41.

The square root of 891995 is about 944.4548692235. The cubic root of 891995 is about 96.2618358414.

The spelling of 891995 in words is "eight hundred ninety-one thousand, nine hundred ninety-five".