989499 has 8 divisors (see below), whose sum is σ = 1507840. Its totient is φ = 565416.

The previous prime is 989479. The next prime is 989507. The reversal of 989499 is 994989.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 989499 - 2⁵ = 989467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23539 + ... + 23580.

It is an arithmetic number, because the mean of its divisors is an integer number (188480).

2⁹⁸⁹⁴⁹⁹ is an apocalyptic number.

989499 is a deficient number, since it is larger than the sum of its proper divisors (518341).

989499 is a wasteful number, since it uses less digits than its factorization.

989499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47129.

The product of its digits is 209952, while the sum is 48.

The square root of 989499 is about 994.7356432741. The cubic root of 989499 is about 99.6487342350.

The spelling of 989499 in words is "nine hundred eighty-nine thousand, four hundred ninety-nine".