2259787 has 4 divisors (see below), whose sum is σ = 2271456. Its totient is φ = 2248120.

The previous prime is 2259781. The next prime is 2259791. The reversal of 2259787 is 7879522.

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

It is a cyclic number.

It is not a de Polignac number, because 2259787 - 2¹⁵ = 2227019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2259781) 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, 5539 + ... + 5932.

It is an arithmetic number, because the mean of its divisors is an integer number (567864).

2^2259787 is an apocalyptic number.

2259787 is a deficient number, since it is larger than the sum of its proper divisors (11669).

2259787 is a wasteful number, since it uses less digits than its factorization.

2259787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11668.

The product of its digits is 70560, while the sum is 40.

The square root of 2259787 is about 1503.2587934218. The cubic root of 2259787 is about 131.2267889416.

The spelling of 2259787 in words is "two million, two hundred fifty-nine thousand, seven hundred eighty-seven".