12849922 has 4 divisors (see below), whose sum is σ = 19274886. Its totient is φ = 6424960.

The previous prime is 12849919. The next prime is 12849923. The reversal of 12849922 is 22994821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22994821 = 1873 ⋅12277.

It can be written as a sum of positive squares in only one way, i.e., 10830681 + 2019241 = 3291^2 + 1421^2 .

It is not an unprimeable number, because it can be changed into a prime (12849923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3212479 + ... + 3212482.

Almost surely, 2^12849922 is an apocalyptic number.

12849922 is a deficient number, since it is larger than the sum of its proper divisors (6424964).

12849922 is an equidigital number, since it uses as much as digits as its factorization.

12849922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6424963.

The product of its digits is 20736, while the sum is 37.

The square root of 12849922 is about 3584.6787861676. The cubic root of 12849922 is about 234.2251345808.

The spelling of 12849922 in words is "twelve million, eight hundred forty-nine thousand, nine hundred twenty-two".