12471973 has 2 divisors, whose sum is σ = 12471974. Its totient is φ = 12471972.

The previous prime is 12471971. The next prime is 12472039. The reversal of 12471973 is 37917421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10876804 + 1595169 = 3298^2 + 1263^2 .

It is a cyclic number.

It is not a de Polignac number, because 12471973 - 2¹ = 12471971 is a prime.

It is a super-2 number, since 2×12471973² = 311100221025458, which contains 22 as substring.

Together with 12471971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12471971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6235986 + 6235987.

It is an arithmetic number, because the mean of its divisors is an integer number (6235987).

Almost surely, 2^12471973 is an apocalyptic number.

It is an amenable number.

12471973 is a deficient number, since it is larger than the sum of its proper divisors (1).

12471973 is an equidigital number, since it uses as much as digits as its factorization.

12471973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 34.

The square root of 12471973 is about 3531.5680653217. The cubic root of 12471973 is about 231.9058588021.

The spelling of 12471973 in words is "twelve million, four hundred seventy-one thousand, nine hundred seventy-three".