3988003 has 2 divisors, whose sum is σ = 3988004.
Its totient is φ = 3988002.
The previous prime is 3987943. The next prime is 3988007. The reversal of 3988003 is 3008893.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 3988003 - 221 = 1890851 is a prime.
It is an Ulam number.
It is not a weakly prime, because it can be changed into another prime (3988007) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994001 + 1994002.
It is an arithmetic number, because the mean of its divisors is an integer number (1994002).
Almost surely, 23988003 is an apocalyptic number.
3988003 is a deficient number, since it is larger than the sum of its proper divisors (1).
3988003 is an equidigital number, since it uses as much as digits as its factorization.
3988003 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 5184, while the sum is 31.
The square root of 3988003 is about 1996.9984977461.
The cubic root of 3988003 is about 158.5812458510.
The spelling of 3988003 in words is "three million, nine hundred eighty-eight thousand, three".