12448631 has 4 divisors (see below), whose sum is σ = 13406232. Its totient is φ = 11491032.

The previous prime is 12448621. The next prime is 12448633. The reversal of 12448631 is 13684421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12448631 - 2¹⁴ = 12432247 is a prime.

It is a super-2 number, since 2×12448631² = 309936827548322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12448594 and 12448603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12448633) 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, 478781 + ... + 478806.

It is an arithmetic number, because the mean of its divisors is an integer number (3351558).

Almost surely, 2^12448631 is an apocalyptic number.

12448631 is a deficient number, since it is larger than the sum of its proper divisors (957601).

12448631 is an equidigital number, since it uses as much as digits as its factorization.

12448631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957600.

The product of its digits is 4608, while the sum is 29.

The square root of 12448631 is about 3528.2617533284. The cubic root of 12448631 is about 231.7610934931.

The spelling of 12448631 in words is "twelve million, four hundred forty-eight thousand, six hundred thirty-one".