8011819 has 2 divisors, whose sum is σ = 8011820. Its totient is φ = 8011818.

The previous prime is 8011789. The next prime is 8011841. The reversal of 8011819 is 9181108.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8011819 is a prime.

It is a super-2 number, since 2×8011819² = 128378487377522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8011849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4005909 + 4005910.

It is an arithmetic number, because the mean of its divisors is an integer number (4005910).

Almost surely, 2^8011819 is an apocalyptic number.

8011819 is a deficient number, since it is larger than the sum of its proper divisors (1).

8011819 is an equidigital number, since it uses as much as digits as its factorization.

8011819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 8011819 is about 2830.5156773987. The cubic root of 8011819 is about 200.0984432034.

The spelling of 8011819 in words is "eight million, eleven thousand, eight hundred nineteen".