12699489 has 24 divisors (see below), whose sum is σ = 18964512. Its totient is φ = 7496320.

The previous prime is 12699469. The next prime is 12699497. The reversal of 12699489 is 98499621.

It is not a de Polignac number, because 12699489 - 2¹¹ = 12697441 is a prime.

It is a super-2 number, since 2×12699489² = 322554041722242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12699409) 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 in 23 ways as a sum of consecutive naturals, for example, 92629 + ... + 92765.

It is an arithmetic number, because the mean of its divisors is an integer number (790188).

Almost surely, 2^12699489 is an apocalyptic number.

It is an amenable number.

12699489 is a deficient number, since it is larger than the sum of its proper divisors (6265023).

12699489 is a wasteful number, since it uses less digits than its factorization.

12699489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 204 counting only the distinct ones).

The product of its digits is 279936, while the sum is 48.

The square root of 12699489 is about 3563.6342404910. The cubic root of 12699489 is about 233.3075261707.

The spelling of 12699489 in words is "twelve million, six hundred ninety-nine thousand, four hundred eighty-nine".