2289279 has 4 divisors (see below), whose sum is σ = 3052376. Its totient is φ = 1526184.

The previous prime is 2289263. The next prime is 2289281. The reversal of 2289279 is 9729822.

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

It is not a de Polignac number, because 2289279 - 2⁴ = 2289263 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2289239) 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, 381544 + ... + 381549.

It is an arithmetic number, because the mean of its divisors is an integer number (763094).

2^2289279 is an apocalyptic number.

2289279 is a deficient number, since it is larger than the sum of its proper divisors (763097).

2289279 is an equidigital number, since it uses as much as digits as its factorization.

2289279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763096.

The product of its digits is 36288, while the sum is 39.

The square root of 2289279 is about 1513.0363511826. The cubic root of 2289279 is about 131.7951943340.

The spelling of 2289279 in words is "two million, two hundred eighty-nine thousand, two hundred seventy-nine".