12396389 has 2 divisors, whose sum is σ = 12396390. Its totient is φ = 12396388.

The previous prime is 12396361. The next prime is 12396401. The reversal of 12396389 is 98369321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9351364 + 3045025 = 3058^2 + 1745^2 .

It is a cyclic number.

It is not a de Polignac number, because 12396389 - 2¹² = 12392293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12396289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6198194 + 6198195.

It is an arithmetic number, because the mean of its divisors is an integer number (6198195).

Almost surely, 2^12396389 is an apocalyptic number.

It is an amenable number.

12396389 is a deficient number, since it is larger than the sum of its proper divisors (1).

12396389 is an equidigital number, since it uses as much as digits as its factorization.

12396389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 12396389 is about 3520.8506074527. The cubic root of 12396389 is about 231.4364355802.

The spelling of 12396389 in words is "twelve million, three hundred ninety-six thousand, three hundred eighty-nine".