12331679 has 2 divisors, whose sum is σ = 12331680. Its totient is φ = 12331678.

The previous prime is 12331673. The next prime is 12331723. The reversal of 12331679 is 97613321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12331679 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12331673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6165839 + 6165840.

It is an arithmetic number, because the mean of its divisors is an integer number (6165840).

Almost surely, 2^12331679 is an apocalyptic number.

12331679 is a deficient number, since it is larger than the sum of its proper divisors (1).

12331679 is an equidigital number, since it uses as much as digits as its factorization.

12331679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 32.

The square root of 12331679 is about 3511.6490428287. The cubic root of 12331679 is about 231.0330281416.

The spelling of 12331679 in words is "twelve million, three hundred thirty-one thousand, six hundred seventy-nine".