6713071987 has 2 divisors, whose sum is σ = 6713071988. Its totient is φ = 6713071986.

The previous prime is 6713071973. The next prime is 6713071997. The reversal of 6713071987 is 7891703176.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6713071987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6713071987.

It is not a weakly prime, because it can be changed into another prime (6713071907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3356535993 + 3356535994.

It is an arithmetic number, because the mean of its divisors is an integer number (3356535994).

Almost surely, 2^6713071987 is an apocalyptic number.

6713071987 is a deficient number, since it is larger than the sum of its proper divisors (1).

6713071987 is an equidigital number, since it uses as much as digits as its factorization.

6713071987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 444528, while the sum is 49.

The square root of 6713071987 is about 81933.3386784647. The cubic root of 6713071987 is about 1886.4288722129.

The spelling of 6713071987 in words is "six billion, seven hundred thirteen million, seventy-one thousand, nine hundred eighty-seven".