12448657 has 8 divisors (see below), whose sum is σ = 13458536. Its totient is φ = 11446272.

The previous prime is 12448651. The next prime is 12448661. The reversal of 12448657 is 75684421.

It can be written as a sum of positive squares in 4 ways, for example, as 1185921 + 11262736 = 1089^2 + 3356^2 .

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 12448657 - 2¹⁵ = 12415889 is a prime.

It is a super-2 number, since 2×12448657² = 309938122207298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12448651) 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, 1873 + ... + 5329.

It is an arithmetic number, because the mean of its divisors is an integer number (1682317).

Almost surely, 2^12448657 is an apocalyptic number.

It is an amenable number.

12448657 is a deficient number, since it is larger than the sum of its proper divisors (1009879).

12448657 is a wasteful number, since it uses less digits than its factorization.

12448657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747.

The product of its digits is 53760, while the sum is 37.

The square root of 12448657 is about 3528.2654378604. The cubic root of 12448657 is about 231.7612548438.

The spelling of 12448657 in words is "twelve million, four hundred forty-eight thousand, six hundred fifty-seven".