12609623 has 8 divisors (see below), whose sum is σ = 13642608. Its totient is φ = 11585664.

The previous prime is 12609613. The next prime is 12609643. The reversal of 12609623 is 32690621.

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 12609623 - 2⁴ = 12609607 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 (12609613) 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, 815 + ... + 5087.

It is an arithmetic number, because the mean of its divisors is an integer number (1705326).

Almost surely, 2^12609623 is an apocalyptic number.

12609623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12609623 is a deficient number, since it is larger than the sum of its proper divisors (1032985).

12609623 is a wasteful number, since it uses less digits than its factorization.

12609623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4513.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 12609623 is about 3551.0030977176. The cubic root of 12609623 is about 232.7559012273.

The spelling of 12609623 in words is "twelve million, six hundred nine thousand, six hundred twenty-three".