424021903 has 2 divisors, whose sum is σ = 424021904. Its totient is φ = 424021902.

The previous prime is 424021901. The next prime is 424022063. The reversal of 424021903 is 309120424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 424021903 - 2¹ = 424021901 is a prime.

Together with 424021901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424021901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212010951 + 212010952.

It is an arithmetic number, because the mean of its divisors is an integer number (212010952).

Almost surely, 2^424021903 is an apocalyptic number.

424021903 is a deficient number, since it is larger than the sum of its proper divisors (1).

424021903 is an equidigital number, since it uses as much as digits as its factorization.

424021903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 424021903 is about 20591.7921269617. The cubic root of 424021903 is about 751.2700867735.

The spelling of 424021903 in words is "four hundred twenty-four million, twenty-one thousand, nine hundred three".