12473217 has 8 divisors (see below), whose sum is σ = 18478880. Its totient is φ = 8315460.

The previous prime is 12473213. The next prime is 12473221. The reversal of 12473217 is 71237421.

It is a happy number.

12473217 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 an interprime number because it is at equal distance from previous prime (12473213) and next prime (12473221).

It is not a de Polignac number, because 12473217 - 2² = 12473213 is a prime.

It is a super-2 number, since 2×12473217² = 311162284658178, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 461971 = 12473217 / (1 + 2 + 4 + 7 + 3 + 2 + 1 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12473213) 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, 230959 + ... + 231012.

It is an arithmetic number, because the mean of its divisors is an integer number (2309860).

Almost surely, 2^12473217 is an apocalyptic number.

It is an amenable number.

12473217 is a deficient number, since it is larger than the sum of its proper divisors (6005663).

12473217 is an equidigital number, since it uses as much as digits as its factorization.

12473217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461980 (or 461974 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 12473217 is about 3531.7441866591. The cubic root of 12473217 is about 231.9135689240.

The spelling of 12473217 in words is "twelve million, four hundred seventy-three thousand, two hundred seventeen".