989672986 has 12 divisors (see below), whose sum is σ = 1576971198. Its totient is φ = 465728192.

The previous prime is 989672977. The next prime is 989672987. The reversal of 989672986 is 689276989.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 830534761 + 159138225 = 28819^2 + 12615^2 .

It is not an unprimeable number, because it can be changed into a prime (989672987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 855541 + ... + 856696.

Almost surely, 2^989672986 is an apocalyptic number.

989672986 is a deficient number, since it is larger than the sum of its proper divisors (587298212).

989672986 is a wasteful number, since it uses less digits than its factorization.

989672986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712273 (or 1712256 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 64.

The square root of 989672986 is about 31459.0684223166. The cubic root of 989672986 is about 996.5457438531.

The spelling of 989672986 in words is "nine hundred eighty-nine million, six hundred seventy-two thousand, nine hundred eighty-six".