2789091 has 6 divisors (see below), whose sum is σ = 4028700. Its totient is φ = 1859388.

The previous prime is 2789089. The next prime is 2789099. The reversal of 2789091 is 1909872.

It is a happy number.

It is not a de Polignac number, because 2789091 - 2¹ = 2789089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2789099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154941 + ... + 154958.

It is an arithmetic number, because the mean of its divisors is an integer number (671450).

2^2789091 is an apocalyptic number.

2789091 is a deficient number, since it is larger than the sum of its proper divisors (1239609).

2789091 is a wasteful number, since it uses less digits than its factorization.

2789091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309905 (or 309902 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 2789091 is about 1670.0571846497. The cubic root of 2789091 is about 140.7626912114.

The spelling of 2789091 in words is "two million, seven hundred eighty-nine thousand, ninety-one".