8111819 has 8 divisors (see below), whose sum is σ = 8253168. Its totient is φ = 7971840.

The previous prime is 8111791. The next prime is 8111849. The reversal of 8111819 is 9181118.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8111819 is a prime.

It is a super-2 number, since 2×8111819² = 131603214977522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8111791 and 8111800.

It is not an unprimeable number, because it can be changed into a prime (8111849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23204 + ... + 23550.

It is an arithmetic number, because the mean of its divisors is an integer number (1031646).

Almost surely, 2^8111819 is an apocalyptic number.

8111819 is a deficient number, since it is larger than the sum of its proper divisors (141349).

8111819 is a wasteful number, since it uses less digits than its factorization.

8111819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685.

The product of its digits is 576, while the sum is 29.

The square root of 8111819 is about 2848.1255239192. The cubic root of 8111819 is about 200.9275169125.

The spelling of 8111819 in words is "eight million, one hundred eleven thousand, eight hundred nineteen".