989745299 has 4 divisors (see below), whose sum is σ = 989919864. Its totient is φ = 989570736.

The previous prime is 989745257. The next prime is 989745311. The reversal of 989745299 is 992547989.

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

It is a cyclic number.

It is not a de Polignac number, because 989745299 - 2¹⁶ = 989679763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989745199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78482 + ... + 90215.

It is an arithmetic number, because the mean of its divisors is an integer number (247479966).

Almost surely, 2^989745299 is an apocalyptic number.

989745299 is a deficient number, since it is larger than the sum of its proper divisors (174565).

989745299 is a wasteful number, since it uses less digits than its factorization.

989745299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174564.

The product of its digits is 14696640, while the sum is 62.

The square root of 989745299 is about 31460.2177201621. The cubic root of 989745299 is about 996.5700149872.

The spelling of 989745299 in words is "nine hundred eighty-nine million, seven hundred forty-five thousand, two hundred ninety-nine".