2259779 has 4 divisors (see below), whose sum is σ = 2312376. Its totient is φ = 2207184.

The previous prime is 2259769. The next prime is 2259781. The reversal of 2259779 is 9779522.

It is a happy number.

2259779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2259779 - 2¹⁶ = 2194243 is a prime.

It is a super-2 number, since 2×2259779² = 10213202257682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2259739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26234 + ... + 26319.

It is an arithmetic number, because the mean of its divisors is an integer number (578094).

2^2259779 is an apocalyptic number.

2259779 is a deficient number, since it is larger than the sum of its proper divisors (52597).

2259779 is an equidigital number, since it uses as much as digits as its factorization.

2259779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52596.

The product of its digits is 79380, while the sum is 41.

The square root of 2259779 is about 1503.2561325336. The cubic root of 2259779 is about 131.2266340869.

The spelling of 2259779 in words is "two million, two hundred fifty-nine thousand, seven hundred seventy-nine".