1998676 has 6 divisors (see below), whose sum is σ = 3497690. Its totient is φ = 999336.

The previous prime is 1998643. The next prime is 1998679. The reversal of 1998676 is 6768991.

It can be written as a sum of positive squares in only one way, i.e., 1144900 + 853776 = 1070^2 + 924^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1998679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249831 + ... + 249838.

2^1998676 is an apocalyptic number.

It is an amenable number.

1998676 is a deficient number, since it is larger than the sum of its proper divisors (1499014).

1998676 is a wasteful number, since it uses less digits than its factorization.

1998676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499673 (or 499671 counting only the distinct ones).

The product of its digits is 163296, while the sum is 46.

The square root of 1998676 is about 1413.7453801870. The cubic root of 1998676 is about 125.9642965944.

The spelling of 1998676 in words is "one million, nine hundred ninety-eight thousand, six hundred seventy-six".