12263421 has 4 divisors (see below), whose sum is σ = 16351232. Its totient is φ = 8175612.

The previous prime is 12263401. The next prime is 12263423. The reversal of 12263421 is 12436221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12263421 - 2⁵ = 12263389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12263423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2043901 + ... + 2043906.

It is an arithmetic number, because the mean of its divisors is an integer number (4087808).

Almost surely, 2^12263421 is an apocalyptic number.

It is an amenable number.

12263421 is a deficient number, since it is larger than the sum of its proper divisors (4087811).

12263421 is an equidigital number, since it uses as much as digits as its factorization.

12263421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087810.

The product of its digits is 576, while the sum is 21.

The square root of 12263421 is about 3501.9167608611. The cubic root of 12263421 is about 230.6059698166.

Adding to 12263421 its reverse (12436221), we get a palindrome (24699642).

The spelling of 12263421 in words is "twelve million, two hundred sixty-three thousand, four hundred twenty-one".