2299091 has 4 divisors (see below), whose sum is σ = 2378400. Its totient is φ = 2219784.

The previous prime is 2299079. The next prime is 2299093. The reversal of 2299091 is 1909922.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2299091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2299093) 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, 39611 + ... + 39668.

It is an arithmetic number, because the mean of its divisors is an integer number (594600).

2^2299091 is an apocalyptic number.

2299091 is a deficient number, since it is larger than the sum of its proper divisors (79309).

2299091 is an equidigital number, since it uses as much as digits as its factorization.

2299091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79308.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 2299091 is about 1516.2753707688. The cubic root of 2299091 is about 131.9832202423.

The spelling of 2299091 in words is "two million, two hundred ninety-nine thousand, ninety-one".