167987 has 2 divisors, whose sum is σ = 167988. Its totient is φ = 167986.

The previous prime is 167971. The next prime is 168013. The reversal of 167987 is 789761.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 167987 - 2⁴ = 167971 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 167987.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 167987.

It is not a weakly prime, because it can be changed into another prime (167917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83993 + 83994.

It is an arithmetic number, because the mean of its divisors is an integer number (83994).

2¹⁶⁷⁹⁸⁷ is an apocalyptic number.

167987 is a deficient number, since it is larger than the sum of its proper divisors (1).

167987 is an equidigital number, since it uses as much as digits as its factorization.

167987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 38.

The square root of 167987 is about 409.8621719554. The cubic root of 167987 is about 55.1770602364.

The spelling of 167987 in words is "one hundred sixty-seven thousand, nine hundred eighty-seven".