2909089 has 4 divisors (see below), whose sum is σ = 2924356. Its totient is φ = 2893824.

The previous prime is 2909087. The next prime is 2909107. The reversal of 2909089 is 9809092.

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 1040400 + 1868689 = 1020^2 + 1367^2 .

It is a cyclic number.

It is not a de Polignac number, because 2909089 - 2¹ = 2909087 is a prime.

It is a Duffinian number.

2909089 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2909087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7344 + ... + 7729.

It is an arithmetic number, because the mean of its divisors is an integer number (731089).

2^2909089 is an apocalyptic number.

It is an amenable number.

2909089 is a deficient number, since it is larger than the sum of its proper divisors (15267).

2909089 is a wasteful number, since it uses less digits than its factorization.

2909089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15266.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 2909089 is about 1705.6051711929. The cubic root of 2909089 is about 142.7531398735.

The spelling of 2909089 in words is "two million, nine hundred nine thousand, eighty-nine".