998793 has 6 divisors (see below), whose sum is σ = 1442714. Its totient is φ = 665856.

The previous prime is 998779. The next prime is 998813. The reversal of 998793 is 397899.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 915849 + 82944 = 957^2 + 288^2 .

It is not a de Polignac number, because 998793 - 2⁸ = 998537 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (998743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55480 + ... + 55497.

2⁹⁹⁸⁷⁹³ is an apocalyptic number.

It is an amenable number.

998793 is a deficient number, since it is larger than the sum of its proper divisors (443921).

998793 is a wasteful number, since it uses less digits than its factorization.

998793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110983 (or 110980 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 998793 is about 999.3963177839. The cubic root of 998793 is about 99.9597504686.

The spelling of 998793 in words is "nine hundred ninety-eight thousand, seven hundred ninety-three".