168487982 has 24 divisors (see below), whose sum is σ = 277126248. Its totient is φ = 76356720.

The previous prime is 168487981. The next prime is 168488009. The reversal of 168487982 is 289784861.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168487981) 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 in 11 ways as a sum of consecutive naturals, for example, 541607 + ... + 541917.

It is an arithmetic number, because the mean of its divisors is an integer number (11546927).

Almost surely, 2^168487982 is an apocalyptic number.

168487982 is a deficient number, since it is larger than the sum of its proper divisors (108638266).

168487982 is an equidigital number, since it uses as much as digits as its factorization.

168487982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704 (or 393 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 53.

The square root of 168487982 is about 12980.2920614291. The cubic root of 168487982 is about 552.3185669903.

The spelling of 168487982 in words is "one hundred sixty-eight million, four hundred eighty-seven thousand, nine hundred eighty-two".