2908985 has 4 divisors (see below), whose sum is σ = 3490788. Its totient is φ = 2327184.

The previous prime is 2908981. The next prime is 2908999. The reversal of 2908985 is 5898092.

It is a happy number.

2908985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1776889 + 1132096 = 1333^2 + 1064^2 .

It is a cyclic number.

It is not a de Polignac number, because 2908985 - 2² = 2908981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2908981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290894 + ... + 290903.

It is an arithmetic number, because the mean of its divisors is an integer number (872697).

2^2908985 is an apocalyptic number.

It is an amenable number.

2908985 is a deficient number, since it is larger than the sum of its proper divisors (581803).

2908985 is an equidigital number, since it uses as much as digits as its factorization.

2908985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581802.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 2908985 is about 1705.5746832080. The cubic root of 2908985 is about 142.7514387105.

The spelling of 2908985 in words is "two million, nine hundred eight thousand, nine hundred eighty-five".