12468657 has 4 divisors (see below), whose sum is σ = 16624880. Its totient is φ = 8312436.

The previous prime is 12468653. The next prime is 12468683. The reversal of 12468657 is 75686421.

12468657 is digitally balanced in base 2 and base 4, 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12468657 - 2² = 12468653 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12468653) 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, 2078107 + ... + 2078112.

It is an arithmetic number, because the mean of its divisors is an integer number (4156220).

Almost surely, 2^12468657 is an apocalyptic number.

It is an amenable number.

12468657 is a deficient number, since it is larger than the sum of its proper divisors (4156223).

12468657 is an equidigital number, since it uses as much as digits as its factorization.

12468657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156222.

The product of its digits is 80640, while the sum is 39.

The square root of 12468657 is about 3531.0985542746. The cubic root of 12468657 is about 231.8853042357.

The spelling of 12468657 in words is "twelve million, four hundred sixty-eight thousand, six hundred fifty-seven".