982143885 has 16 divisors (see below), whose sum is σ = 1571860800. Its totient is φ = 523666560.

The previous prime is 982143881. The next prime is 982143887. The reversal of 982143885 is 588341289.

982143885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 982143885 - 2² = 982143881 is a prime.

It is a super-2 number, since 2×982143885² = 1929213221685786450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (982143881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70065 + ... + 82905.

It is an arithmetic number, because the mean of its divisors is an integer number (98241300).

Almost surely, 2^982143885 is an apocalyptic number.

It is an amenable number.

982143885 is a deficient number, since it is larger than the sum of its proper divisors (589716915).

982143885 is a wasteful number, since it uses less digits than its factorization.

982143885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17948.

The product of its digits is 552960, while the sum is 48.

The square root of 982143885 is about 31339.1749253231. The cubic root of 982143885 is about 994.0121792315.

The spelling of 982143885 in words is "nine hundred eighty-two million, one hundred forty-three thousand, eight hundred eighty-five".