989531662 has 16 divisors (see below), whose sum is σ = 1697183712. Its totient is φ = 423874080.

The previous prime is 989531639. The next prime is 989531689. The reversal of 989531662 is 266135989.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13468 + ... + 46480.

It is an arithmetic number, because the mean of its divisors is an integer number (106073982).

Almost surely, 2^989531662 is an apocalyptic number.

989531662 is a deficient number, since it is larger than the sum of its proper divisors (707652050).

989531662 is a wasteful number, since it uses less digits than its factorization.

989531662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35163.

The product of its digits is 699840, while the sum is 49.

The square root of 989531662 is about 31456.8221853384. The cubic root of 989531662 is about 996.4983064547.

The spelling of 989531662 in words is "nine hundred eighty-nine million, five hundred thirty-one thousand, six hundred sixty-two".