2988605 has 16 divisors (see below), whose sum is σ = 3817920. Its totient is φ = 2239488.

The previous prime is 2988571. The next prime is 2988607. The reversal of 2988605 is 5068892.

It is a cyclic number.

It is not a de Polignac number, because 2988605 - 2¹⁶ = 2923069 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2988607) 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 15 ways as a sum of consecutive naturals, for example, 15389 + ... + 15581.

It is an arithmetic number, because the mean of its divisors is an integer number (238620).

2^2988605 is an apocalyptic number.

It is an amenable number.

2988605 is a deficient number, since it is larger than the sum of its proper divisors (829315).

2988605 is a wasteful number, since it uses less digits than its factorization.

2988605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 2988605 is about 1728.7582248539. The cubic root of 2988605 is about 144.0421205230.

The spelling of 2988605 in words is "two million, nine hundred eighty-eight thousand, six hundred five".