2989917 has 12 divisors (see below), whose sum is σ = 4935840. Its totient is φ = 1708488.

The previous prime is 2989879. The next prime is 2989927. The reversal of 2989917 is 7199892.

It is a de Polignac number, because none of the positive numbers 2^k-2989917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23667 + ... + 23792.

It is an arithmetic number, because the mean of its divisors is an integer number (411320).

2^2989917 is an apocalyptic number.

It is an amenable number.

2989917 is a deficient number, since it is larger than the sum of its proper divisors (1945923).

2989917 is a wasteful number, since it uses less digits than its factorization.

2989917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47472 (or 47469 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 2989917 is about 1729.1376463428. The cubic root of 2989917 is about 144.0631956416.

The spelling of 2989917 in words is "two million, nine hundred eighty-nine thousand, nine hundred seventeen".