4221871 has 8 divisors (see below), whose sum is σ = 4359344. Its totient is φ = 4086720.

The previous prime is 4221851. The next prime is 4221883. The reversal of 4221871 is 1781224.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4221871 - 2¹¹ = 4219823 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 (4221851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3571 + ... + 4603.

It is an arithmetic number, because the mean of its divisors is an integer number (544918).

Almost surely, 2^4221871 is an apocalyptic number.

4221871 is a deficient number, since it is larger than the sum of its proper divisors (137473).

4221871 is a wasteful number, since it uses less digits than its factorization.

4221871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161.

The product of its digits is 896, while the sum is 25.

The square root of 4221871 is about 2054.7192022269. The cubic root of 4221871 is about 161.6224378012.

The spelling of 4221871 in words is "four million, two hundred twenty-one thousand, eight hundred seventy-one".