3856403 has 2 divisors, whose sum is σ = 3856404. Its totient is φ = 3856402.

The previous prime is 3856393. The next prime is 3856409. The reversal of 3856403 is 3046583.

3856403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3856403 - 2⁸ = 3856147 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 3⁵ + 8⁷ + 5⁷ + 6⁸ + 4⁵ + 0 + 3⁵ .

It is not a weakly prime, because it can be changed into another prime (3856409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1928201 + 1928202.

It is an arithmetic number, because the mean of its divisors is an integer number (1928202).

Almost surely, 2^3856403 is an apocalyptic number.

3856403 is a deficient number, since it is larger than the sum of its proper divisors (1).

3856403 is an equidigital number, since it uses as much as digits as its factorization.

3856403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 3856403 is about 1963.7726446817. The cubic root of 3856403 is about 156.8173596591.

The spelling of 3856403 in words is "three million, eight hundred fifty-six thousand, four hundred three".