1082891 has 2 divisors, whose sum is σ = 1082892. Its totient is φ = 1082890.

The previous prime is 1082881. The next prime is 1082911. The reversal of 1082891 is 1982801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1082891 - 2¹⁸ = 820747 is a prime.

It is a Chen prime.

It is an Ulam number.

It is equal to p₈₄₄₈₅ and since 1082891 and 84485 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1082801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541445 + 541446.

It is an arithmetic number, because the mean of its divisors is an integer number (541446).

2^1082891 is an apocalyptic number.

1082891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1082891 is an equidigital number, since it uses as much as digits as its factorization.

1082891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 1082891 is about 1040.6204879782. The cubic root of 1082891 is about 102.6900222815.

The spelling of 1082891 in words is "one million, eighty-two thousand, eight hundred ninety-one".