12718433 has 16 divisors (see below), whose sum is σ = 15765120. Its totient is φ = 10050768.

The previous prime is 12718403. The next prime is 12718451. The reversal of 12718433 is 33481721.

It is not a de Polignac number, because 12718433 - 2⁸ = 12718177 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12718396 and 12718405.

It is not an unprimeable number, because it can be changed into a prime (12718403) 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, 14966 + ... + 15792.

It is an arithmetic number, because the mean of its divisors is an integer number (985320).

Almost surely, 2^12718433 is an apocalyptic number.

12718433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12718433 is a deficient number, since it is larger than the sum of its proper divisors (3046687).

12718433 is an frugal number, since it uses more digits than its factorization.

12718433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873 (or 847 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 12718433 is about 3566.2912107678. The cubic root of 12718433 is about 233.4234778681.

The spelling of 12718433 in words is "twelve million, seven hundred eighteen thousand, four hundred thirty-three".