4221783 has 12 divisors (see below), whose sum is σ = 6240520. Its totient is φ = 2748816.

The previous prime is 4221779. The next prime is 4221787. The reversal of 4221783 is 3871224.

It is an interprime number because it is at equal distance from previous prime (4221779) and next prime (4221787).

It is not a de Polignac number, because 4221783 - 2² = 4221779 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221787) 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 11 ways as a sum of consecutive naturals, for example, 5068 + ... + 5841.

Almost surely, 2^4221783 is an apocalyptic number.

4221783 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

4221783 is a deficient number, since it is larger than the sum of its proper divisors (2018737).

4221783 is a wasteful number, since it uses less digits than its factorization.

4221783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10958 (or 10955 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 4221783 is about 2054.6977879971. The cubic root of 4221783 is about 161.6213148493.

The spelling of 4221783 in words is "four million, two hundred twenty-one thousand, seven hundred eighty-three".