2989988 has 6 divisors (see below), whose sum is σ = 5232486. Its totient is φ = 1494992.

The previous prime is 2989963. The next prime is 2989997. The reversal of 2989988 is 8899892.

It can be written as a sum of positive squares in only one way, i.e., 1827904 + 1162084 = 1352^2 + 1078^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 373745 + ... + 373752.

It is an arithmetic number, because the mean of its divisors is an integer number (872081).

2^2989988 is an apocalyptic number.

It is an amenable number.

2989988 is a deficient number, since it is larger than the sum of its proper divisors (2242498).

2989988 is a wasteful number, since it uses less digits than its factorization.

2989988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747501 (or 747499 counting only the distinct ones).

The product of its digits is 746496, while the sum is 53.

The square root of 2989988 is about 1729.1581766860. The cubic root of 2989988 is about 144.0643359638.

The spelling of 2989988 in words is "two million, nine hundred eighty-nine thousand, nine hundred eighty-eight".