12969849 has 4 divisors (see below), whose sum is σ = 17293136. Its totient is φ = 8646564.

The previous prime is 12969839. The next prime is 12969851. The reversal of 12969849 is 94896921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12969849 - 2⁴ = 12969833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12969798 and 12969807.

It is not an unprimeable number, because it can be changed into a prime (12969839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2161639 + ... + 2161644.

It is an arithmetic number, because the mean of its divisors is an integer number (4323284).

Almost surely, 2^12969849 is an apocalyptic number.

It is an amenable number.

12969849 is a deficient number, since it is larger than the sum of its proper divisors (4323287).

12969849 is an equidigital number, since it uses as much as digits as its factorization.

12969849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323286.

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

The square root of 12969849 is about 3601.3676568770. The cubic root of 12969849 is about 234.9515457667.

The spelling of 12969849 in words is "twelve million, nine hundred sixty-nine thousand, eight hundred forty-nine".