998373 has 4 divisors (see below), whose sum is σ = 1331168. Its totient is φ = 665580.

The previous prime is 998353. The next prime is 998377. The reversal of 998373 is 373899.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 373899 = 3 ⋅124633.

It is not a de Polignac number, because 998373 - 2⁸ = 998117 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166393 + ... + 166398.

It is an arithmetic number, because the mean of its divisors is an integer number (332792).

2⁹⁹⁸³⁷³ is an apocalyptic number.

It is an amenable number.

998373 is a deficient number, since it is larger than the sum of its proper divisors (332795).

998373 is a wasteful number, since it uses less digits than its factorization.

998373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332794.

The product of its digits is 40824, while the sum is 39.

The square root of 998373 is about 999.1861688394. The cubic root of 998373 is about 99.9457372275.

The spelling of 998373 in words is "nine hundred ninety-eight thousand, three hundred seventy-three".