3663811 has 2 divisors, whose sum is σ = 3663812. Its totient is φ = 3663810.

The previous prime is 3663767. The next prime is 3663833. The reversal of 3663811 is 1183663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3663811 - 2²¹ = 1566659 is a prime.

It is a super-2 number, since 2×3663811² = 26847022087442, which contains 22 as substring.

3663811 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3663811.

It is not a weakly prime, because it can be changed into another prime (3663311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1831905 + 1831906.

It is an arithmetic number, because the mean of its divisors is an integer number (1831906).

Almost surely, 2^3663811 is an apocalyptic number.

3663811 is a deficient number, since it is larger than the sum of its proper divisors (1).

3663811 is an equidigital number, since it uses as much as digits as its factorization.

3663811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 3663811 is about 1914.1084086331. The cubic root of 3663811 is about 154.1621247587.

The spelling of 3663811 in words is "three million, six hundred sixty-three thousand, eight hundred eleven".