3866011 has 2 divisors, whose sum is σ = 3866012. Its totient is φ = 3866010.

The previous prime is 3865993. The next prime is 3866033. The reversal of 3866011 is 1106683.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3866011 is a prime.

3866011 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3866081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1933005 + 1933006.

It is an arithmetic number, because the mean of its divisors is an integer number (1933006).

Almost surely, 2^3866011 is an apocalyptic number.

3866011 is a deficient number, since it is larger than the sum of its proper divisors (1).

3866011 is an equidigital number, since it uses as much as digits as its factorization.

3866011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 3866011 is about 1966.2174345682. The cubic root of 3866011 is about 156.9474853777.

It can be divided in two parts, 38 and 66011, that added together give a square (66049 = 257²).

The spelling of 3866011 in words is "three million, eight hundred sixty-six thousand, eleven".