12912623 has 8 divisors (see below), whose sum is σ = 13110000. Its totient is φ = 12716928.

The previous prime is 12912619. The next prime is 12912649. The reversal of 12912623 is 32621921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12912623 - 2² = 12912619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12912592 and 12912601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12911623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25628 + ... + 26126.

It is an arithmetic number, because the mean of its divisors is an integer number (1638750).

Almost surely, 2^12912623 is an apocalyptic number.

12912623 is a deficient number, since it is larger than the sum of its proper divisors (197377).

12912623 is a wasteful number, since it uses less digits than its factorization.

12912623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841.

The product of its digits is 1296, while the sum is 26.

The square root of 12912623 is about 3593.4138364513. The cubic root of 12912623 is about 234.6054826160.

The spelling of 12912623 in words is "twelve million, nine hundred twelve thousand, six hundred twenty-three".