2989909 has 16 divisors (see below), whose sum is σ = 3471552. Its totient is φ = 2550528.

The previous prime is 2989879. The next prime is 2989927. The reversal of 2989909 is 9099892.

2989909 = 46² + 47² + ... + 208².

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2989909 - 2¹⁹ = 2465621 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 (2989009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18262 + ... + 18424.

It is an arithmetic number, because the mean of its divisors is an integer number (216972).

2^2989909 is an apocalyptic number.

It is an amenable number.

2989909 is a deficient number, since it is larger than the sum of its proper divisors (481643).

2989909 is a wasteful number, since it uses less digits than its factorization.

2989909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276.

The product of its (nonzero) digits is 104976, while the sum is 46.

The square root of 2989909 is about 1729.1353330494. The cubic root of 2989909 is about 144.0630671535.

The spelling of 2989909 in words is "two million, nine hundred eighty-nine thousand, nine hundred nine".