12569623 has 4 divisors (see below), whose sum is σ = 13712328. Its totient is φ = 11426920.

The previous prime is 12569617. The next prime is 12569629. The reversal of 12569623 is 32696521.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12569617) and next prime (12569629).

It is a cyclic number.

It is not a de Polignac number, because 12569623 - 2⁵ = 12569591 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 (12569629) 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, 571336 + ... + 571357.

It is an arithmetic number, because the mean of its divisors is an integer number (3428082).

Almost surely, 2^12569623 is an apocalyptic number.

12569623 is a deficient number, since it is larger than the sum of its proper divisors (1142705).

12569623 is a wasteful number, since it uses less digits than its factorization.

12569623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142704.

The product of its digits is 19440, while the sum is 34.

The square root of 12569623 is about 3545.3664126575. The cubic root of 12569623 is about 232.5095259519.

The spelling of 12569623 in words is "twelve million, five hundred sixty-nine thousand, six hundred twenty-three".