2267891 has 8 divisors (see below), whose sum is σ = 2351424. Its totient is φ = 2185920.

The previous prime is 2267879. The next prime is 2267911. The reversal of 2267891 is 1987622.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2267891 - 2⁶ = 2267827 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2267801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3101 + ... + 3761.

It is an arithmetic number, because the mean of its divisors is an integer number (293928).

2^2267891 is an apocalyptic number.

2267891 is a deficient number, since it is larger than the sum of its proper divisors (83533).

2267891 is an equidigital number, since it uses as much as digits as its factorization.

2267891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781.

The product of its digits is 12096, while the sum is 35.

The square root of 2267891 is about 1505.9518584603. The cubic root of 2267891 is about 131.3834693676.

The spelling of 2267891 in words is "two million, two hundred sixty-seven thousand, eight hundred ninety-one".