989890382 has 32 divisors (see below), whose sum is σ = 1714608000. Its totient is φ = 424539648.

The previous prime is 989890351. The next prime is 989890397. The reversal of 989890382 is 283098989.

It is a super-2 number, since 2×989890382² = 1959765936752211848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20744 + ... + 49092.

It is an arithmetic number, because the mean of its divisors is an integer number (53581500).

Almost surely, 2^989890382 is an apocalyptic number.

989890382 is a deficient number, since it is larger than the sum of its proper divisors (724717618).

989890382 is a wasteful number, since it uses less digits than its factorization.

989890382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28460.

The product of its (nonzero) digits is 2239488, while the sum is 56.

The square root of 989890382 is about 31462.5234525141. The cubic root of 989890382 is about 996.6187070778.

The spelling of 989890382 in words is "nine hundred eighty-nine million, eight hundred ninety thousand, three hundred eighty-two".