6863811 has 4 divisors (see below), whose sum is σ = 9151752. Its totient is φ = 4575872.

The previous prime is 6863797. The next prime is 6863819. The reversal of 6863811 is 1183686.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6863811 - 2¹⁵ = 6831043 is a prime.

It is a super-2 number, since 2×6863811² = 94223802887442, which contains 22 as substring.

It is a D-number.

6863811 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6863819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143966 + ... + 1143971.

It is an arithmetic number, because the mean of its divisors is an integer number (2287938).

Almost surely, 2^6863811 is an apocalyptic number.

6863811 is a deficient number, since it is larger than the sum of its proper divisors (2287941).

6863811 is a wasteful number, since it uses less digits than its factorization.

6863811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287940.

The product of its digits is 6912, while the sum is 33.

The square root of 6863811 is about 2619.8875930085. The cubic root of 6863811 is about 190.0444125171.

The spelling of 6863811 in words is "six million, eight hundred sixty-three thousand, eight hundred eleven".