998038 has 8 divisors (see below), whose sum is σ = 1537632. Its totient is φ = 485496.

The previous prime is 998029. The next prime is 998069. The reversal of 998038 is 830899.

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

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 997988 and 998006.

It is a congruent number.

It is an unprimeable number.

998038 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6670 + ... + 6817.

It is an arithmetic number, because the mean of its divisors is an integer number (192204).

2⁹⁹⁸⁰³⁸ is an apocalyptic number.

998038 is a deficient number, since it is larger than the sum of its proper divisors (539594).

998038 is a wasteful number, since it uses less digits than its factorization.

998038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13526.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 998038 is about 999.0185183469. The cubic root of 998038 is about 99.9345571817.

Subtracting from 998038 its sum of digits (37), we obtain a square (998001 = 999²).

The spelling of 998038 in words is "nine hundred ninety-eight thousand, thirty-eight".