12355979 has 2 divisors, whose sum is σ = 12355980. Its totient is φ = 12355978.

The previous prime is 12355951. The next prime is 12355997. The reversal of 12355979 is 97955321.

12355979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (12355997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12355979 - 2⁸ = 12355723 is a prime.

It is not a weakly prime, because it can be changed into another prime (12355919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6177989 + 6177990.

It is an arithmetic number, because the mean of its divisors is an integer number (6177990).

Almost surely, 2^12355979 is an apocalyptic number.

12355979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12355979 is an equidigital number, since it uses as much as digits as its factorization.

12355979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85050, while the sum is 41.

The square root of 12355979 is about 3515.1072529867. The cubic root of 12355979 is about 231.1846814302.

The spelling of 12355979 in words is "twelve million, three hundred fifty-five thousand, nine hundred seventy-nine".