3906863 has 2 divisors, whose sum is σ = 3906864. Its totient is φ = 3906862.

The previous prime is 3906857. The next prime is 3906883. The reversal of 3906863 is 3686093.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3906863 - 2⁸ = 3906607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3906883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1953431 + 1953432.

It is an arithmetic number, because the mean of its divisors is an integer number (1953432).

Almost surely, 2^3906863 is an apocalyptic number.

3906863 is a deficient number, since it is larger than the sum of its proper divisors (1).

3906863 is an equidigital number, since it uses as much as digits as its factorization.

3906863 is an odious number, because the sum of its binary digits is odd.

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

The square root of 3906863 is about 1976.5786096181. The cubic root of 3906863 is about 157.4983690097.

The spelling of 3906863 in words is "three million, nine hundred six thousand, eight hundred sixty-three".