1998596 has 6 divisors (see below), whose sum is σ = 3497550. Its totient is φ = 999296.

The previous prime is 1998589. The next prime is 1998611. The reversal of 1998596 is 6958991.

1998596 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1849600 + 148996 = 1360^2 + 386^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1998596.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249821 + ... + 249828.

It is an arithmetic number, because the mean of its divisors is an integer number (582925).

2^1998596 is an apocalyptic number.

It is an amenable number.

1998596 is a deficient number, since it is larger than the sum of its proper divisors (1498954).

1998596 is a wasteful number, since it uses less digits than its factorization.

1998596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499653 (or 499651 counting only the distinct ones).

The product of its digits is 174960, while the sum is 47.

The square root of 1998596 is about 1413.7170862658. The cubic root of 1998596 is about 125.9626159354.

The spelling of 1998596 in words is "one million, nine hundred ninety-eight thousand, five hundred ninety-six".