7967936687 has 2 divisors, whose sum is σ = 7967936688. Its totient is φ = 7967936686.

The previous prime is 7967936629. The next prime is 7967936689. The reversal of 7967936687 is 7866397697.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7967936687 - 2¹⁸ = 7967674543 is a prime.

Together with 7967936689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7967936689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3983968343 + 3983968344.

It is an arithmetic number, because the mean of its divisors is an integer number (3983968344).

Almost surely, 2^7967936687 is an apocalyptic number.

7967936687 is a deficient number, since it is larger than the sum of its proper divisors (1).

7967936687 is an equidigital number, since it uses as much as digits as its factorization.

7967936687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144027072, while the sum is 68.

The square root of 7967936687 is about 89263.2997765599. The cubic root of 7967936687 is about 1997.3244796414.

The spelling of 7967936687 in words is "seven billion, nine hundred sixty-seven million, nine hundred thirty-six thousand, six hundred eighty-seven".