4168987 has 2 divisors, whose sum is σ = 4168988. Its totient is φ = 4168986.

The previous prime is 4168981. The next prime is 4169057. The reversal of 4168987 is 7898614.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4168987 - 2¹⁹ = 3644699 is a prime.

It is not a weakly prime, because it can be changed into another prime (4168981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2084493 + 2084494.

It is an arithmetic number, because the mean of its divisors is an integer number (2084494).

Almost surely, 2^4168987 is an apocalyptic number.

4168987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4168987 is an equidigital number, since it uses as much as digits as its factorization.

4168987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 43.

The square root of 4168987 is about 2041.8097364838. The cubic root of 4168987 is about 160.9447619873.

The spelling of 4168987 in words is "four million, one hundred sixty-eight thousand, nine hundred eighty-seven".