989807490 has 96 divisors (see below), whose sum is σ = 3114184320. Its totient is φ = 212931072.

The previous prime is 989807477. The next prime is 989807501. The reversal of 989807490 is 94708989.

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 in 47 ways as a sum of consecutive naturals, for example, 35500 + ... + 56919.

It is an arithmetic number, because the mean of its divisors is an integer number (32439420).

Almost surely, 2^989807490 is an apocalyptic number.

989807490 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

989807490 is an abundant number, since it is smaller than the sum of its proper divisors (2124376830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

989807490 is a wasteful number, since it uses less digits than its factorization.

989807490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92456 (or 92453 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 989807490 is about 31461.2061116544. The cubic root of 989807490 is about 996.5908878278.

The spelling of 989807490 in words is "nine hundred eighty-nine million, eight hundred seven thousand, four hundred ninety".