4221479 has 2 divisors, whose sum is σ = 4221480. Its totient is φ = 4221478.

The previous prime is 4221473. The next prime is 4221499. The reversal of 4221479 is 9741224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4221479 - 2⁸ = 4221223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110739 + 2110740.

It is an arithmetic number, because the mean of its divisors is an integer number (2110740).

Almost surely, 2^4221479 is an apocalyptic number.

4221479 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221479 is an equidigital number, since it uses as much as digits as its factorization.

4221479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 4221479 is about 2054.6238098494. The cubic root of 4221479 is about 161.6174354411.

The spelling of 4221479 in words is "four million, two hundred twenty-one thousand, four hundred seventy-nine".