2003421929 has 2 divisors, whose sum is σ = 2003421930. Its totient is φ = 2003421928.

The previous prime is 2003421919. The next prime is 2003422019. The reversal of 2003421929 is 9291243002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1931426704 + 71995225 = 43948^2 + 8485^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003421929 - 2¹² = 2003417833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2003421895 and 2003421904.

It is not a weakly prime, because it can be changed into another prime (2003421919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001710964 + 1001710965.

It is an arithmetic number, because the mean of its divisors is an integer number (1001710965).

Almost surely, 2^2003421929 is an apocalyptic number.

It is an amenable number.

2003421929 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003421929 is an equidigital number, since it uses as much as digits as its factorization.

2003421929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 2003421929 is about 44759.6015286106. The cubic root of 2003421929 is about 1260.6392005368.

The spelling of 2003421929 in words is "two billion, three million, four hundred twenty-one thousand, nine hundred twenty-nine".