12618723 has 12 divisors (see below), whose sum is σ = 18219480. Its totient is φ = 7765056.

The previous prime is 12618721. The next prime is 12618731. The reversal of 12618723 is 32781621.

It is not a de Polignac number, because 12618723 - 2¹ = 12618721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12618721) 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 11 ways as a sum of consecutive naturals, for example, 11938 + ... + 12951.

It is an arithmetic number, because the mean of its divisors is an integer number (1518290).

Almost surely, 2^12618723 is an apocalyptic number.

12618723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12618723 is a deficient number, since it is larger than the sum of its proper divisors (5600757).

12618723 is a wasteful number, since it uses less digits than its factorization.

12618723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24918 (or 24905 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 12618723 is about 3552.2841947119. The cubic root of 12618723 is about 232.8118788296.

The spelling of 12618723 in words is "twelve million, six hundred eighteen thousand, seven hundred twenty-three".