12718669 has 16 divisors (see below), whose sum is σ = 13989888. Its totient is φ = 11515392.

The previous prime is 12718663. The next prime is 12718679. The reversal of 12718669 is 96681721.

It is not a de Polignac number, because 12718669 - 2³ = 12718661 is a prime.

It is a super-2 number, since 2×12718669² = 323529082263122, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (36288) is a multiple of the sum of its prime divisors (324).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12718661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92769 + ... + 92905.

It is an arithmetic number, because the mean of its divisors is an integer number (874368).

Almost surely, 2^12718669 is an apocalyptic number.

It is an amenable number.

12718669 is a deficient number, since it is larger than the sum of its proper divisors (1271219).

12718669 is a wasteful number, since it uses less digits than its factorization.

12718669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324.

The product of its digits is 36288, while the sum is 40.

The square root of 12718669 is about 3566.3242982096. The cubic root of 12718669 is about 233.4249216413.

The spelling of 12718669 in words is "twelve million, seven hundred eighteen thousand, six hundred sixty-nine".