4003387 has 2 divisors, whose sum is σ = 4003388. Its totient is φ = 4003386.

The previous prime is 4003361. The next prime is 4003397. The reversal of 4003387 is 7833004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4003387 - 2¹¹ = 4001339 is a prime.

It is not a weakly prime, because it can be changed into another prime (4003397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001693 + 2001694.

It is an arithmetic number, because the mean of its divisors is an integer number (2001694).

Almost surely, 2^4003387 is an apocalyptic number.

4003387 is a deficient number, since it is larger than the sum of its proper divisors (1).

4003387 is an equidigital number, since it uses as much as digits as its factorization.

4003387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 4003387 is about 2000.8465708295. The cubic root of 4003387 is about 158.7848969514.

The spelling of 4003387 in words is "four million, three thousand, three hundred eighty-seven".