12650447 has 4 divisors (see below), whose sum is σ = 13316280. Its totient is φ = 11984616.

The previous prime is 12650423. The next prime is 12650459. The reversal of 12650447 is 74405621.

12650447 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74405621 = 23 ⋅3235027.

It is a cyclic number.

It is not a de Polignac number, because 12650447 - 2¹⁶ = 12584911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12650497) 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, 332888 + ... + 332925.

It is an arithmetic number, because the mean of its divisors is an integer number (3329070).

Almost surely, 2^12650447 is an apocalyptic number.

12650447 is a deficient number, since it is larger than the sum of its proper divisors (665833).

12650447 is an equidigital number, since it uses as much as digits as its factorization.

12650447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665832.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 12650447 is about 3556.7466876346. The cubic root of 12650447 is about 233.0068151776.

The spelling of 12650447 in words is "twelve million, six hundred fifty thousand, four hundred forty-seven".