1998063 has 6 divisors (see below), whose sum is σ = 2886104. Its totient is φ = 1332036.

The previous prime is 1998049. The next prime is 1998067. The reversal of 1998063 is 3608991.

It is not a de Polignac number, because 1998063 - 2⁶ = 1997999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1998067) 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, 110995 + ... + 111012.

2^1998063 is an apocalyptic number.

1998063 is a deficient number, since it is larger than the sum of its proper divisors (888041).

1998063 is a wasteful number, since it uses less digits than its factorization.

1998063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222013 (or 222010 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1998063 is about 1413.5285635600. The cubic root of 1998063 is about 125.9514174001.

It can be divided in two parts, 199806 and 3, that added together give a square (199809 = 447²).

The spelling of 1998063 in words is "one million, nine hundred ninety-eight thousand, sixty-three".