2003959 has 2 divisors, whose sum is σ = 2003960. Its totient is φ = 2003958.

The previous prime is 2003951. The next prime is 2003971. The reversal of 2003959 is 9593002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2003959 - 2³ = 2003951 is a prime.

It is a Chen prime.

It is an Ulam number.

2003959 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2003951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001979 + 1001980.

It is an arithmetic number, because the mean of its divisors is an integer number (1001980).

2^2003959 is an apocalyptic number.

2003959 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003959 is an equidigital number, since it uses as much as digits as its factorization.

2003959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 2003959 is about 1415.6125882458. The cubic root of 2003959 is about 126.0751839859.

The spelling of 2003959 in words is "two million, three thousand, nine hundred fifty-nine".