12662449 has 2 divisors, whose sum is σ = 12662450. Its totient is φ = 12662448.

The previous prime is 12662431. The next prime is 12662453. The reversal of 12662449 is 94426621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12110400 + 552049 = 3480^2 + 743^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12662449 is a prime.

It is a super-2 number, since 2×12662449² = 320675229355202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12662149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331224 + 6331225.

It is an arithmetic number, because the mean of its divisors is an integer number (6331225).

Almost surely, 2^12662449 is an apocalyptic number.

It is an amenable number.

12662449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12662449 is an equidigital number, since it uses as much as digits as its factorization.

12662449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The square root of 12662449 is about 3558.4335036642. The cubic root of 12662449 is about 233.0804796065.

The spelling of 12662449 in words is "twelve million, six hundred sixty-two thousand, four hundred forty-nine".