1003900939 has 2 divisors, whose sum is σ = 1003900940. Its totient is φ = 1003900938.

The previous prime is 1003900903. The next prime is 1003900969. The reversal of 1003900939 is 9390093001.

It is a happy number.

1003900939 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 1003900939 - 2⁷ = 1003900811 is a prime.

It is not a weakly prime, because it can be changed into another prime (1003900969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501950469 + 501950470.

It is an arithmetic number, because the mean of its divisors is an integer number (501950470).

Almost surely, 2^1003900939 is an apocalyptic number.

1003900939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003900939 is an equidigital number, since it uses as much as digits as its factorization.

1003900939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6561, while the sum is 34.

The square root of 1003900939 is about 31684.3958282307. The cubic root of 1003900939 is about 1001.2986258409.

The spelling of 1003900939 in words is "one billion, three million, nine hundred thousand, nine hundred thirty-nine".