4366421 has 2 divisors, whose sum is σ = 4366422. Its totient is φ = 4366420.

The previous prime is 4366403. The next prime is 4366469. The reversal of 4366421 is 1246634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4363921 + 2500 = 2089^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 4366421 - 2¹⁰ = 4365397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4366471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2183210 + 2183211.

It is an arithmetic number, because the mean of its divisors is an integer number (2183211).

Almost surely, 2^4366421 is an apocalyptic number.

It is an amenable number.

4366421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4366421 is an equidigital number, since it uses as much as digits as its factorization.

4366421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 26.

The square root of 4366421 is about 2089.5982867527. The cubic root of 4366421 is about 163.4463408786.

The spelling of 4366421 in words is "four million, three hundred sixty-six thousand, four hundred twenty-one".