8102811 has 16 divisors (see below), whose sum is σ = 11245568. Its totient is φ = 5184000.

The previous prime is 8102777. The next prime is 8102821. The reversal of 8102811 is 1182018.

It is not a de Polignac number, because 8102811 - 2⁶ = 8102747 is a prime.

It is a super-2 number, since 2×8102811² = 131311092203442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8102821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13755 + ... + 14331.

It is an arithmetic number, because the mean of its divisors is an integer number (702848).

Almost surely, 2^8102811 is an apocalyptic number.

8102811 is a deficient number, since it is larger than the sum of its proper divisors (3142757).

8102811 is a wasteful number, since it uses less digits than its factorization.

8102811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 8102811 is about 2846.5436936748. The cubic root of 8102811 is about 200.8531141405.

Adding to 8102811 its reverse (1182018), we get a palindrome (9284829).

The spelling of 8102811 in words is "eight million, one hundred two thousand, eight hundred eleven".