1086091 has 2 divisors, whose sum is σ = 1086092. Its totient is φ = 1086090.

The previous prime is 1086089. The next prime is 1086101. The reversal of 1086091 is 1906801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1086091 - 2¹ = 1086089 is a prime.

Together with 1086089, it forms a pair of twin primes.

It is equal to p₈₄₇₀₆ and since 1086091 and 84706 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 (1086031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543045 + 543046.

It is an arithmetic number, because the mean of its divisors is an integer number (543046).

2^1086091 is an apocalyptic number.

1086091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1086091 is an equidigital number, since it uses as much as digits as its factorization.

1086091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1086091 is about 1042.1568979765. The cubic root of 1086091 is about 102.7910742855.

The spelling of 1086091 in words is "one million, eighty-six thousand, ninety-one".