8100811 has 2 divisors, whose sum is σ = 8100812. Its totient is φ = 8100810.

The previous prime is 8100803. The next prime is 8100871. The reversal of 8100811 is 1180018.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8100811 - 2³ = 8100803 is a prime.

It is not a weakly prime, because it can be changed into another prime (8100871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4050405 + 4050406.

It is an arithmetic number, because the mean of its divisors is an integer number (4050406).

Almost surely, 2^8100811 is an apocalyptic number.

8100811 is a deficient number, since it is larger than the sum of its proper divisors (1).

8100811 is an equidigital number, since it uses as much as digits as its factorization.

8100811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 19.

The square root of 8100811 is about 2846.1923687622. The cubic root of 8100811 is about 200.8365873951.

Adding to 8100811 its reverse (1180018), we get a palindrome (9280829).

It can be divided in two parts, 8100 and 811, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 8100811 in words is "eight million, one hundred thousand, eight hundred eleven".