3866903 has 2 divisors, whose sum is σ = 3866904. Its totient is φ = 3866902.

The previous prime is 3866881. The next prime is 3866911. The reversal of 3866903 is 3096683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3866903 - 2⁶ = 3866839 is a prime.

It is a super-2 number, since 2×3866903² = 29905877622818, which contains 22 as substring.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3866923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1933451 + 1933452.

It is an arithmetic number, because the mean of its divisors is an integer number (1933452).

Almost surely, 2^3866903 is an apocalyptic number.

3866903 is a deficient number, since it is larger than the sum of its proper divisors (1).

3866903 is an equidigital number, since it uses as much as digits as its factorization.

3866903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 3866903 is about 1966.4442529601. Note that the first 3 decimals coincide. The cubic root of 3866903 is about 156.9595552168.

The spelling of 3866903 in words is "three million, eight hundred sixty-six thousand, nine hundred three".