20082691 has 2 divisors, whose sum is σ = 20082692. Its totient is φ = 20082690.

The previous prime is 20082683. The next prime is 20082697. The reversal of 20082691 is 19628002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20082691 - 2³ = 20082683 is a prime.

It is not a weakly prime, because it can be changed into another prime (20082697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10041345 + 10041346.

It is an arithmetic number, because the mean of its divisors is an integer number (10041346).

Almost surely, 2^20082691 is an apocalyptic number.

20082691 is a deficient number, since it is larger than the sum of its proper divisors (1).

20082691 is an equidigital number, since it uses as much as digits as its factorization.

20082691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 20082691 is about 4481.3715534421. The cubic root of 20082691 is about 271.8153437788.

The spelling of 20082691 in words is "twenty million, eighty-two thousand, six hundred ninety-one".