10819691 has 2 divisors, whose sum is σ = 10819692. Its totient is φ = 10819690.

The previous prime is 10819687. The next prime is 10819693. The reversal of 10819691 is 19691801.

It is a strong prime.

It is an emirp because it is prime and its reverse (19691801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10819691 - 2² = 10819687 is a prime.

It is a Sophie Germain prime.

Together with 10819693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10819693) 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 as a sum of consecutive naturals, namely, 5409845 + 5409846.

It is an arithmetic number, because the mean of its divisors is an integer number (5409846).

Almost surely, 2^10819691 is an apocalyptic number.

10819691 is a deficient number, since it is larger than the sum of its proper divisors (1).

10819691 is an equidigital number, since it uses as much as digits as its factorization.

10819691 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 35.

The square root of 10819691 is about 3289.3298709616. The cubic root of 10819691 is about 221.1761458842.

The spelling of 10819691 in words is "ten million, eight hundred nineteen thousand, six hundred ninety-one".