4221393 has 8 divisors (see below), whose sum is σ = 6140256. Its totient is φ = 2558400.

The previous prime is 4221379. The next prime is 4221407. The reversal of 4221393 is 3931224.

It is an interprime number because it is at equal distance from previous prime (4221379) and next prime (4221407).

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

It is not a de Polignac number, because 4221393 - 2⁵ = 4221361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4221313) 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, 63928 + ... + 63993.

It is an arithmetic number, because the mean of its divisors is an integer number (767532).

Almost surely, 2^4221393 is an apocalyptic number.

It is an amenable number.

4221393 is a deficient number, since it is larger than the sum of its proper divisors (1918863).

4221393 is a wasteful number, since it uses less digits than its factorization.

4221393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127935.

The product of its digits is 1296, while the sum is 24.

The square root of 4221393 is about 2054.6028813374. The cubic root of 4221393 is about 161.6163379431.

The spelling of 4221393 in words is "four million, two hundred twenty-one thousand, three hundred ninety-three".