989089558 has 4 divisors (see below), whose sum is σ = 1483634340. Its totient is φ = 494544778.

The previous prime is 989089531. The next prime is 989089561. The reversal of 989089558 is 855980989.

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

It is a junction number, because it is equal to n+sod(n) for n = 989089496 and 989089505.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 247272388 + ... + 247272391.

It is an arithmetic number, because the mean of its divisors is an integer number (370908585).

Almost surely, 2^989089558 is an apocalyptic number.

989089558 is a deficient number, since it is larger than the sum of its proper divisors (494544782).

989089558 is a wasteful number, since it uses less digits than its factorization.

989089558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494544781.

The product of its (nonzero) digits is 9331200, while the sum is 61.

The square root of 989089558 is about 31449.7942441600. The cubic root of 989089558 is about 996.3498788261.

The spelling of 989089558 in words is "nine hundred eighty-nine million, eighty-nine thousand, five hundred fifty-eight".