2889917 has 4 divisors (see below), whose sum is σ = 2916540. Its totient is φ = 2863296.

The previous prime is 2889883. The next prime is 2889923. The reversal of 2889917 is 7199882.

2889917 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, and also an emirpimes, since its reverse is a distinct semiprime: 7199882 = 2 ⋅3599941.

It can be written as a sum of positive squares in 2 ways, for example, as 1223236 + 1666681 = 1106^2 + 1291^2 .

It is a cyclic number.

It is not a de Polignac number, because 2889917 - 2⁶ = 2889853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2889947) 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, 13148 + ... + 13365.

It is an arithmetic number, because the mean of its divisors is an integer number (729135).

2^2889917 is an apocalyptic number.

It is an amenable number.

2889917 is a deficient number, since it is larger than the sum of its proper divisors (26623).

2889917 is a wasteful number, since it uses less digits than its factorization.

2889917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26622.

The product of its digits is 72576, while the sum is 44.

The square root of 2889917 is about 1699.9755880600. The cubic root of 2889917 is about 142.4388493138.

The spelling of 2889917 in words is "two million, eight hundred eighty-nine thousand, nine hundred seventeen".