3988903 has 2 divisors, whose sum is σ = 3988904. Its totient is φ = 3988902.

The previous prime is 3988889. The next prime is 3988909. The reversal of 3988903 is 3098893.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3988903 is a prime.

It is a super-2 number, since 2×3988903² = 31822694286818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3988909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994451 + 1994452.

It is an arithmetic number, because the mean of its divisors is an integer number (1994452).

Almost surely, 2^3988903 is an apocalyptic number.

3988903 is a deficient number, since it is larger than the sum of its proper divisors (1).

3988903 is an equidigital number, since it uses as much as digits as its factorization.

3988903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 3988903 is about 1997.2238232106. The cubic root of 3988903 is about 158.5931743263.

It can be divided in two parts, 398890 and 3, that added together give a palindrome (398893).

The spelling of 3988903 in words is "three million, nine hundred eighty-eight thousand, nine hundred three".