12872473 has 2 divisors, whose sum is σ = 12872474. Its totient is φ = 12872472.

The previous prime is 12872449. The next prime is 12872507. The reversal of 12872473 is 37427821.

It is an a-pointer prime, because the next prime (12872507) can be obtained adding 12872473 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11108889 + 1763584 = 3333^2 + 1328^2 .

It is an emirp because it is prime and its reverse (37427821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12872473 - 2⁵ = 12872441 is a prime.

It is a super-2 number, since 2×12872473² = 331401122271458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12872413) 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 as a sum of consecutive naturals, namely, 6436236 + 6436237.

It is an arithmetic number, because the mean of its divisors is an integer number (6436237).

Almost surely, 2^12872473 is an apocalyptic number.

It is an amenable number.

12872473 is a deficient number, since it is larger than the sum of its proper divisors (1).

12872473 is an equidigital number, since it uses as much as digits as its factorization.

12872473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 34.

The square root of 12872473 is about 3587.8228774565. The cubic root of 12872473 is about 234.3620724840.

The spelling of 12872473 in words is "twelve million, eight hundred seventy-two thousand, four hundred seventy-three".