12434621 has 2 divisors, whose sum is σ = 12434622. Its totient is φ = 12434620.

The previous prime is 12434579. The next prime is 12434629. The reversal of 12434621 is 12643421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10982596 + 1452025 = 3314^2 + 1205^2 .

It is a cyclic number.

It is not a de Polignac number, because 12434621 - 2¹⁸ = 12172477 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 (12434629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6217310 + 6217311.

It is an arithmetic number, because the mean of its divisors is an integer number (6217311).

Almost surely, 2^12434621 is an apocalyptic number.

It is an amenable number.

12434621 is a deficient number, since it is larger than the sum of its proper divisors (1).

12434621 is an equidigital number, since it uses as much as digits as its factorization.

12434621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 12434621 is about 3526.2757974951. The cubic root of 12434621 is about 231.6741176172.

The spelling of 12434621 in words is "twelve million, four hundred thirty-four thousand, six hundred twenty-one".