4582421 has 2 divisors, whose sum is σ = 4582422. Its totient is φ = 4582420.

The previous prime is 4582393. The next prime is 4582423. The reversal of 4582421 is 1242854.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4452100 + 130321 = 2110^2 + 361^2 .

It is a cyclic number.

It is not a de Polignac number, because 4582421 - 2²² = 388117 is a prime.

It is a Sophie Germain prime.

Together with 4582423, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4582423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2291210 + 2291211.

It is an arithmetic number, because the mean of its divisors is an integer number (2291211).

Almost surely, 2^4582421 is an apocalyptic number.

It is an amenable number.

4582421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4582421 is an equidigital number, since it uses as much as digits as its factorization.

4582421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2560, while the sum is 26.

The square root of 4582421 is about 2140.6590106787. The cubic root of 4582421 is about 166.0982265704.

The spelling of 4582421 in words is "four million, five hundred eighty-two thousand, four hundred twenty-one".