4221827 has 2 divisors, whose sum is σ = 4221828. Its totient is φ = 4221826.

The previous prime is 4221799. The next prime is 4221829. The reversal of 4221827 is 7281224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4221827 - 2⁸ = 4221571 is a prime.

Together with 4221829, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4221796 and 4221805.

It is not a weakly prime, because it can be changed into another prime (4221829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110913 + 2110914.

It is an arithmetic number, because the mean of its divisors is an integer number (2110914).

Almost surely, 2^4221827 is an apocalyptic number.

4221827 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221827 is an equidigital number, since it uses as much as digits as its factorization.

4221827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 26.

The square root of 4221827 is about 2054.7084951399. The cubic root of 4221827 is about 161.6218763272.

The spelling of 4221827 in words is "four million, two hundred twenty-one thousand, eight hundred twenty-seven".