892991 has 4 divisors (see below), whose sum is σ = 974184. Its totient is φ = 811800.

The previous prime is 892987. The next prime is 892999. The reversal of 892991 is 199298.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 892991 - 2² = 892987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (892999) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40580 + ... + 40601.

It is an arithmetic number, because the mean of its divisors is an integer number (243546).

2⁸⁹²⁹⁹¹ is an apocalyptic number.

892991 is a deficient number, since it is larger than the sum of its proper divisors (81193).

892991 is a wasteful number, since it uses less digits than its factorization.

892991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81192.

The product of its digits is 11664, while the sum is 38.

The square root of 892991 is about 944.9820104108. The cubic root of 892991 is about 96.2976511114.

The spelling of 892991 in words is "eight hundred ninety-two thousand, nine hundred ninety-one".