12623426 has 4 divisors (see below), whose sum is σ = 18935142. Its totient is φ = 6311712.

The previous prime is 12623423. The next prime is 12623431. The reversal of 12623426 is 62432621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62432621 = 29 ⋅2152849.

It can be written as a sum of positive squares in only one way, i.e., 11909401 + 714025 = 3451^2 + 845^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12623395 and 12623404.

It is not an unprimeable number, because it can be changed into a prime (12623423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3155855 + ... + 3155858.

Almost surely, 2^12623426 is an apocalyptic number.

12623426 is a deficient number, since it is larger than the sum of its proper divisors (6311716).

12623426 is an equidigital number, since it uses as much as digits as its factorization.

12623426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311715.

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

The square root of 12623426 is about 3552.9461014769. The cubic root of 12623426 is about 232.8407982448.

The spelling of 12623426 in words is "twelve million, six hundred twenty-three thousand, four hundred twenty-six".