998674 has 8 divisors (see below), whose sum is σ = 1504188. Its totient is φ = 497280.

The previous prime is 998653. The next prime is 998681. The reversal of 998674 is 476899.

It can be written as a sum of positive squares in 2 ways, for example, as 990025 + 8649 = 995^2 + 93^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 998674.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327 + ... + 1450.

2⁹⁹⁸⁶⁷⁴ is an apocalyptic number.

998674 is a deficient number, since it is larger than the sum of its proper divisors (505514).

998674 is a wasteful number, since it uses less digits than its factorization.

998674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060.

The product of its digits is 108864, while the sum is 43.

The square root of 998674 is about 999.3367800697. The cubic root of 998674 is about 99.9557804492.

The spelling of 998674 in words is "nine hundred ninety-eight thousand, six hundred seventy-four".