1081699 has 2 divisors, whose sum is σ = 1081700. Its totient is φ = 1081698.

The previous prime is 1081687. The next prime is 1081709. The reversal of 1081699 is 9961801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1081699 - 2¹¹ = 1079651 is a prime.

It is not a weakly prime, because it can be changed into another prime (1081679) 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, 540849 + 540850.

It is an arithmetic number, because the mean of its divisors is an integer number (540850).

2^1081699 is an apocalyptic number.

1081699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081699 is an equidigital number, since it uses as much as digits as its factorization.

1081699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 1081699 is about 1040.0475950648. The cubic root of 1081699 is about 102.6523295228.

The spelling of 1081699 in words is "one million, eighty-one thousand, six hundred ninety-nine".