989084979874 has 8 divisors (see below), whose sum is σ = 1484582804460. Its totient is φ = 494224045056.

The previous prime is 989084979853. The next prime is 989084979881. The reversal of 989084979874 is 478979480989.

It can be written as a sum of positive squares in 2 ways, for example, as 724359294649 + 264725685225 = 851093^2 + 514515^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 159218559 + ... + 159224770.

Almost surely, 2^989084979874 is an apocalyptic number.

989084979874 is a deficient number, since it is larger than the sum of its proper divisors (495497824586).

989084979874 is a wasteful number, since it uses less digits than its factorization.

989084979874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318444884.

The product of its (nonzero) digits is 2633637888, while the sum is 82.

The spelling of 989084979874 in words is "nine hundred eighty-nine billion, eighty-four million, nine hundred seventy-nine thousand, eight hundred seventy-four".