12578471 has 2 divisors, whose sum is σ = 12578472. Its totient is φ = 12578470.

The previous prime is 12578443. The next prime is 12578477. The reversal of 12578471 is 17487521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12578471 - 2⁶ = 12578407 is a prime.

It is a super-3 number, since 3×12578471³ (a number of 22 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12578477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6289235 + 6289236.

It is an arithmetic number, because the mean of its divisors is an integer number (6289236).

Almost surely, 2^12578471 is an apocalyptic number.

12578471 is a deficient number, since it is larger than the sum of its proper divisors (1).

12578471 is an equidigital number, since it uses as much as digits as its factorization.

12578471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15680, while the sum is 35.

The square root of 12578471 is about 3546.6140190328. The cubic root of 12578471 is about 232.5640691354.

The spelling of 12578471 in words is "twelve million, five hundred seventy-eight thousand, four hundred seventy-one".