12731707 has 2 divisors, whose sum is σ = 12731708. Its totient is φ = 12731706.

The previous prime is 12731701. The next prime is 12731723. The reversal of 12731707 is 70713721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12731707 - 2³ = 12731699 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12731701) 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, 6365853 + 6365854.

It is an arithmetic number, because the mean of its divisors is an integer number (6365854).

Almost surely, 2^12731707 is an apocalyptic number.

12731707 is a deficient number, since it is larger than the sum of its proper divisors (1).

12731707 is an equidigital number, since it uses as much as digits as its factorization.

12731707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2058, while the sum is 28.

The square root of 12731707 is about 3568.1517624675. The cubic root of 12731707 is about 233.5046562630.

The spelling of 12731707 in words is "twelve million, seven hundred thirty-one thousand, seven hundred seven".