989606959 has 8 divisors (see below), whose sum is σ = 1079799552. Its totient is φ = 899452440.

The previous prime is 989606957. The next prime is 989606977. The reversal of 989606959 is 959606989.

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

It is a cyclic number.

It is not a de Polignac number, because 989606959 - 2¹ = 989606957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 989606897 and 989606906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989606957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91492 + ... + 101734.

It is an arithmetic number, because the mean of its divisors is an integer number (134974944).

Almost surely, 2^989606959 is an apocalyptic number.

989606959 is a deficient number, since it is larger than the sum of its proper divisors (90192593).

989606959 is a wasteful number, since it uses less digits than its factorization.

989606959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19037.

The product of its (nonzero) digits is 9447840, while the sum is 61.

The square root of 989606959 is about 31458.0189935730. The cubic root of 989606959 is about 996.5235815193.

The spelling of 989606959 in words is "nine hundred eighty-nine million, six hundred six thousand, nine hundred fifty-nine".