989896853 has 8 divisors (see below), whose sum is σ = 1109074080. Its totient is φ = 875584080.

The previous prime is 989896849. The next prime is 989896861. The reversal of 989896853 is 358698989.

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 989896853 - 2² = 989896849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 989896853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989896813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215683 + ... + 1216496.

It is an arithmetic number, because the mean of its divisors is an integer number (138634260).

Almost surely, 2^989896853 is an apocalyptic number.

It is an amenable number.

989896853 is a deficient number, since it is larger than the sum of its proper divisors (119177227).

989896853 is a wasteful number, since it uses less digits than its factorization.

989896853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432227.

The product of its digits is 33592320, while the sum is 65.

The square root of 989896853 is about 31462.6262889798. The cubic root of 989896853 is about 996.6208787343.

The spelling of 989896853 in words is "nine hundred eighty-nine million, eight hundred ninety-six thousand, eight hundred fifty-three".