4004387 has 2 divisors, whose sum is σ = 4004388. Its totient is φ = 4004386.

The previous prime is 4004359. The next prime is 4004393. The reversal of 4004387 is 7834004.

4004387 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 4004387 - 2¹² = 4000291 is a prime.

It is not a weakly prime, because it can be changed into another prime (4004087) 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, 2002193 + 2002194.

It is an arithmetic number, because the mean of its divisors is an integer number (2002194).

Almost surely, 2^4004387 is an apocalyptic number.

4004387 is a deficient number, since it is larger than the sum of its proper divisors (1).

4004387 is an equidigital number, since it uses as much as digits as its factorization.

4004387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 4004387 is about 2001.0964494497. The cubic root of 4004387 is about 158.7981167307.

The spelling of 4004387 in words is "four million, four thousand, three hundred eighty-seven".