989209674 has 24 divisors (see below), whose sum is σ = 2147895360. Its totient is φ = 329027688.

The previous prime is 989209621. The next prime is 989209681. The reversal of 989209674 is 476902989.

989209674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 989209674.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50434 + ... + 67245.

It is an arithmetic number, because the mean of its divisors is an integer number (89495640).

Almost surely, 2^989209674 is an apocalyptic number.

989209674 is the 16812-nd nonagonal number.

989209674 is an abundant number, since it is smaller than the sum of its proper divisors (1158685686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

989209674 is a wasteful number, since it uses less digits than its factorization.

989209674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118154 (or 118151 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 989209674 is about 31451.7038330199. The cubic root of 989209674 is about 996.3902097603.

The spelling of 989209674 in words is "nine hundred eighty-nine million, two hundred nine thousand, six hundred seventy-four".