989746966 has 16 divisors (see below), whose sum is σ = 1642035024. Its totient is φ = 444459744.

The previous prime is 989746957. The next prime is 989746991. The reversal of 989746966 is 669647989.

It is a junction number, because it is equal to n+sod(n) for n = 989746898 and 989746907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513460 + ... + 515383.

It is an arithmetic number, because the mean of its divisors is an integer number (102627189).

Almost surely, 2^989746966 is an apocalyptic number.

989746966 is a deficient number, since it is larger than the sum of its proper divisors (652288058).

989746966 is a wasteful number, since it uses less digits than its factorization.

989746966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028895.

The product of its digits is 35271936, while the sum is 64.

The square root of 989746966 is about 31460.2442139282. The cubic root of 989746966 is about 996.5705744851.

The spelling of 989746966 in words is "nine hundred eighty-nine million, seven hundred forty-six thousand, nine hundred sixty-six".