12623651 has 4 divisors (see below), whose sum is σ = 12648312. Its totient is φ = 12598992.

The previous prime is 12623641. The next prime is 12623659. The reversal of 12623651 is 15632621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12623651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12623651.

It is not an unprimeable number, because it can be changed into a prime (12623659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11546 + ... + 12591.

It is an arithmetic number, because the mean of its divisors is an integer number (3162078).

Almost surely, 2^12623651 is an apocalyptic number.

12623651 is a deficient number, since it is larger than the sum of its proper divisors (24661).

12623651 is an equidigital number, since it uses as much as digits as its factorization.

12623651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24660.

The product of its digits is 2160, while the sum is 26.

The square root of 12623651 is about 3552.9777651992. The cubic root of 12623651 is about 232.8421816217.

It can be divided in two parts, 1262 and 3651, that added together give a cube (4913 = 17³).

The spelling of 12623651 in words is "twelve million, six hundred twenty-three thousand, six hundred fifty-one".