4903221 has 4 divisors (see below), whose sum is σ = 6537632. Its totient is φ = 3268812.

The previous prime is 4903219. The next prime is 4903237. The reversal of 4903221 is 1223094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4903221 - 2¹ = 4903219 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4903201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817201 + ... + 817206.

It is an arithmetic number, because the mean of its divisors is an integer number (1634408).

Almost surely, 2^4903221 is an apocalyptic number.

It is an amenable number.

4903221 is a deficient number, since it is larger than the sum of its proper divisors (1634411).

4903221 is a wasteful number, since it uses less digits than its factorization.

4903221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634410.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 4903221 is about 2214.3217923328. The cubic root of 4903221 is about 169.8871338485.

The spelling of 4903221 in words is "four million, nine hundred three thousand, two hundred twenty-one".