15712871 has 2 divisors, whose sum is σ = 15712872. Its totient is φ = 15712870.

The previous prime is 15712859. The next prime is 15712891. The reversal of 15712871 is 17821751.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15712871 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15712891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7856435 + 7856436.

It is an arithmetic number, because the mean of its divisors is an integer number (7856436).

Almost surely, 2^15712871 is an apocalyptic number.

15712871 is a deficient number, since it is larger than the sum of its proper divisors (1).

15712871 is an equidigital number, since it uses as much as digits as its factorization.

15712871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 32.

The square root of 15712871 is about 3963.9463921703. The cubic root of 15712871 is about 250.4677695540.

The spelling of 15712871 in words is "fifteen million, seven hundred twelve thousand, eight hundred seventy-one".