1989299 has 12 divisors (see below), whose sum is σ = 2196000. Its totient is φ = 1800864.

The previous prime is 1989277. The next prime is 1989307. The reversal of 1989299 is 9929891.

It is not a de Polignac number, because 1989299 - 2¹⁶ = 1923763 is a prime.

It is a super-2 number, since 2×1989299² = 7914621022802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1989259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13277 + ... + 13425.

It is an arithmetic number, because the mean of its divisors is an integer number (183000).

2^1989299 is an apocalyptic number.

1989299 is a deficient number, since it is larger than the sum of its proper divisors (206701).

1989299 is a wasteful number, since it uses less digits than its factorization.

1989299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 241 counting only the distinct ones).

The product of its digits is 104976, while the sum is 47.

The square root of 1989299 is about 1410.4251132194. The cubic root of 1989299 is about 125.7669961099.

It can be divided in two parts, 19892 and 99, that added together give a palindrome (19991).

The spelling of 1989299 in words is "one million, nine hundred eighty-nine thousand, two hundred ninety-nine".