989878603 has 4 divisors (see below), whose sum is σ = 1131289840. Its totient is φ = 848467368.

The previous prime is 989878579. The next prime is 989878607. The reversal of 989878603 is 306878989.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 989878603 - 2²⁹ = 453007691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989878607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70705608 + ... + 70705621.

It is an arithmetic number, because the mean of its divisors is an integer number (282822460).

Almost surely, 2^989878603 is an apocalyptic number.

989878603 is a deficient number, since it is larger than the sum of its proper divisors (141411237).

989878603 is a wasteful number, since it uses less digits than its factorization.

989878603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141411236.

The product of its (nonzero) digits is 5225472, while the sum is 58.

The square root of 989878603 is about 31462.3362609963. The cubic root of 989878603 is about 996.6147540413.

The spelling of 989878603 in words is "nine hundred eighty-nine million, eight hundred seventy-eight thousand, six hundred three".