4220393 has 2 divisors, whose sum is σ = 4220394. Its totient is φ = 4220392.

The previous prime is 4220387. The next prime is 4220423. The reversal of 4220393 is 3930224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2650384 + 1570009 = 1628^2 + 1253^2 .

It is a cyclic number.

It is not a de Polignac number, because 4220393 - 2⁸ = 4220137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4220323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110196 + 2110197.

It is an arithmetic number, because the mean of its divisors is an integer number (2110197).

Almost surely, 2^4220393 is an apocalyptic number.

It is an amenable number.

4220393 is a deficient number, since it is larger than the sum of its proper divisors (1).

4220393 is an equidigital number, since it uses as much as digits as its factorization.

4220393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 4220393 is about 2054.3595108938. The cubic root of 4220393 is about 161.6035752444.

The spelling of 4220393 in words is "four million, two hundred twenty thousand, three hundred ninety-three".