989935331 has 16 divisors (see below), whose sum is σ = 1237033728. Its totient is φ = 769610400.

The previous prime is 989935327. The next prime is 989935351. The reversal of 989935331 is 133539989.

989935331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 989935331 - 2² = 989935327 is a prime.

It is a super-2 number, since 2×989935331² = 1959943919124159122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 989935331.

It is not an unprimeable number, because it can be changed into a prime (989935301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19601 + ... + 48621.

It is an arithmetic number, because the mean of its divisors is an integer number (77314608).

Almost surely, 2^989935331 is an apocalyptic number.

989935331 is a deficient number, since it is larger than the sum of its proper divisors (247098397).

989935331 is a wasteful number, since it uses less digits than its factorization.

989935331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29482.

The product of its digits is 787320, while the sum is 50.

The square root of 989935331 is about 31463.2377704520. The cubic root of 989935331 is about 996.6337916895.

The spelling of 989935331 in words is "nine hundred eighty-nine million, nine hundred thirty-five thousand, three hundred thirty-one".