4919903 has 2 divisors, whose sum is σ = 4919904. Its totient is φ = 4919902.

The previous prime is 4919899. The next prime is 4919911. The reversal of 4919903 is 3099194.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4919903 - 2² = 4919899 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4919983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2459951 + 2459952.

It is an arithmetic number, because the mean of its divisors is an integer number (2459952).

Almost surely, 2^4919903 is an apocalyptic number.

4919903 is a deficient number, since it is larger than the sum of its proper divisors (1).

4919903 is an equidigital number, since it uses as much as digits as its factorization.

4919903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 4919903 is about 2218.0854356855. The cubic root of 4919903 is about 170.0795821166.

The spelling of 4919903 in words is "four million, nine hundred nineteen thousand, nine hundred three".