1998059 has 16 divisors (see below), whose sum is σ = 2446080. Its totient is φ = 1594080.

The previous prime is 1998049. The next prime is 1998067. The reversal of 1998059 is 9508991.

It is a cyclic number.

It is not a de Polignac number, because 1998059 - 2¹² = 1993963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1998019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10949 + ... + 11129.

It is an arithmetic number, because the mean of its divisors is an integer number (152880).

2^1998059 is an apocalyptic number.

1998059 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1998059 is a deficient number, since it is larger than the sum of its proper divisors (448021).

1998059 is a wasteful number, since it uses less digits than its factorization.

1998059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290.

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 1998059 is about 1413.5271486604. The cubic root of 1998059 is about 125.9513333511.

The spelling of 1998059 in words is "one million, nine hundred ninety-eight thousand, fifty-nine".