998824 has 8 divisors (see below), whose sum is σ = 1872810. Its totient is φ = 499408.

The previous prime is 998819. The next prime is 998831. The reversal of 998824 is 428899.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 777924 + 220900 = 882^2 + 470^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a zygodrome in base 7.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62419 + ... + 62434.

2⁹⁹⁸⁸²⁴ is an apocalyptic number.

It is an amenable number.

998824 is a deficient number, since it is larger than the sum of its proper divisors (873986).

998824 is a wasteful number, since it uses less digits than its factorization.

998824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124859 (or 124855 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 998824 is about 999.4118270263. The cubic root of 998824 is about 99.9607846236.

The spelling of 998824 in words is "nine hundred ninety-eight thousand, eight hundred twenty-four".