2280691 has 4 divisors (see below), whose sum is σ = 2606512. Its totient is φ = 1954872.

The previous prime is 2280689. The next prime is 2280709. The reversal of 2280691 is 1960822.

It is a happy number.

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 2280691 - 2¹ = 2280689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2280631) 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, 162900 + ... + 162913.

It is an arithmetic number, because the mean of its divisors is an integer number (651628).

2^2280691 is an apocalyptic number.

2280691 is a deficient number, since it is larger than the sum of its proper divisors (325821).

2280691 is an equidigital number, since it uses as much as digits as its factorization.

2280691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325820.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2280691 is about 1510.1956826849. The cubic root of 2280691 is about 131.6301823462.

The spelling of 2280691 in words is "two million, two hundred eighty thousand, six hundred ninety-one".