3908563 has 2 divisors, whose sum is σ = 3908564. Its totient is φ = 3908562.

The previous prime is 3908561. The next prime is 3908581. The reversal of 3908563 is 3658093.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3908563 - 2¹ = 3908561 is a prime.

Together with 3908561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3908561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1954281 + 1954282.

It is an arithmetic number, because the mean of its divisors is an integer number (1954282).

Almost surely, 2^3908563 is an apocalyptic number.

3908563 is a deficient number, since it is larger than the sum of its proper divisors (1).

3908563 is an equidigital number, since it uses as much as digits as its factorization.

3908563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 3908563 is about 1977.0085988685. The cubic root of 3908563 is about 157.5212098756.

Subtracting from 3908563 its sum of digits (34), we obtain a square (3908529 = 1977²).

The spelling of 3908563 in words is "three million, nine hundred eight thousand, five hundred sixty-three".