4213591 has 2 divisors, whose sum is σ = 4213592. Its totient is φ = 4213590.

The previous prime is 4213589. The next prime is 4213609. The reversal of 4213591 is 1953124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4213591 - 2¹ = 4213589 is a prime.

Together with 4213589, it forms a pair of twin primes.

4213591 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4211591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2106795 + 2106796.

It is an arithmetic number, because the mean of its divisors is an integer number (2106796).

Almost surely, 2^4213591 is an apocalyptic number.

4213591 is a deficient number, since it is larger than the sum of its proper divisors (1).

4213591 is an equidigital number, since it uses as much as digits as its factorization.

4213591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 25.

The square root of 4213591 is about 2052.7033395014. The cubic root of 4213591 is about 161.5167098277.

The spelling of 4213591 in words is "four million, two hundred thirteen thousand, five hundred ninety-one".