12699449 has 8 divisors (see below), whose sum is σ = 14538048. Its totient is φ = 10866960.

The previous prime is 12699443. The next prime is 12699461. The reversal of 12699449 is 94499621.

12699449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12699449 - 2⁴ = 12699433 is a prime.

It is a super-2 number, since 2×12699449² = 322552009807202, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12699443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4559 + ... + 6795.

It is an arithmetic number, because the mean of its divisors is an integer number (1817256).

Almost surely, 2^12699449 is an apocalyptic number.

It is an amenable number.

12699449 is a deficient number, since it is larger than the sum of its proper divisors (1838599).

12699449 is an equidigital number, since it uses as much as digits as its factorization.

12699449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055.

The product of its digits is 139968, while the sum is 44.

The square root of 12699449 is about 3563.6286282384. The cubic root of 12699449 is about 233.3072812183.

The spelling of 12699449 in words is "twelve million, six hundred ninety-nine thousand, four hundred forty-nine".