12388473 has 6 divisors (see below), whose sum is σ = 17894474. Its totient is φ = 8258976.

The previous prime is 12388471. The next prime is 12388487. The reversal of 12388473 is 37488321.

12388473 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10517049 + 1871424 = 3243^2 + 1368^2 .

It is not a de Polignac number, because 12388473 - 2¹ = 12388471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12388471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 688240 + ... + 688257.

Almost surely, 2^12388473 is an apocalyptic number.

It is an amenable number.

12388473 is a deficient number, since it is larger than the sum of its proper divisors (5506001).

12388473 is a wasteful number, since it uses less digits than its factorization.

12388473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376503 (or 1376500 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 12388473 is about 3519.7262677657. The cubic root of 12388473 is about 231.3871620666.

The spelling of 12388473 in words is "twelve million, three hundred eighty-eight thousand, four hundred seventy-three".