12473216 has 32 divisors (see below), whose sum is σ = 28400880. Its totient is φ = 5345280.

The previous prime is 12473213. The next prime is 12473221. The reversal of 12473216 is 61237421.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×12473216² = 311162234765312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12473213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6065 + ... + 7856.

Almost surely, 2^12473216 is an apocalyptic number.

12473216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12473216 is an abundant number, since it is smaller than the sum of its proper divisors (15927664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12473216 is an equidigital number, since it uses as much as digits as its factorization.

12473216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13942 (or 13930 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 12473216 is about 3531.7440450859. The cubic root of 12473216 is about 231.9135627264.

The spelling of 12473216 in words is "twelve million, four hundred seventy-three thousand, two hundred sixteen".