163876987 has 2 divisors, whose sum is σ = 163876988. Its totient is φ = 163876986.

The previous prime is 163876981. The next prime is 163876997. The reversal of 163876987 is 789678361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163876987 - 2⁷ = 163876859 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (163876981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81938493 + 81938494.

It is an arithmetic number, because the mean of its divisors is an integer number (81938494).

Almost surely, 2^163876987 is an apocalyptic number.

163876987 is a deficient number, since it is larger than the sum of its proper divisors (1).

163876987 is an equidigital number, since it uses as much as digits as its factorization.

163876987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 55.

The square root of 163876987 is about 12801.4447231553. Note that the first 3 decimals coincide. The cubic root of 163876987 is about 547.2334761928.

It can be divided in two parts, 163 and 876987, that added together give a triangular number (877150 = T₁₃₂₄).

The spelling of 163876987 in words is "one hundred sixty-three million, eight hundred seventy-six thousand, nine hundred eighty-seven".