12289623 has 16 divisors (see below), whose sum is σ = 17593056. Its totient is φ = 7603200.

The previous prime is 12289583. The next prime is 12289631. The reversal of 12289623 is 32698221.

It is a happy number.

It is not a de Polignac number, because 12289623 - 2⁶ = 12289559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12288623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2073 + ... + 5373.

It is an arithmetic number, because the mean of its divisors is an integer number (1099566).

Almost surely, 2^12289623 is an apocalyptic number.

12289623 is a deficient number, since it is larger than the sum of its proper divisors (5303433).

12289623 is a wasteful number, since it uses less digits than its factorization.

12289623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394.

The product of its digits is 10368, while the sum is 33.

The square root of 12289623 is about 3505.6558587517. The cubic root of 12289623 is about 230.7700903985.

The spelling of 12289623 in words is "twelve million, two hundred eighty-nine thousand, six hundred twenty-three".