2279669 has 4 divisors (see below), whose sum is σ = 2605344. Its totient is φ = 1953996.

The previous prime is 2279663. The next prime is 2279687. The reversal of 2279669 is 9669722.

It is a happy number.

2279669 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9669722 = 2 ⋅4834861.

It is a cyclic number.

It is not a de Polignac number, because 2279669 - 2⁴ = 2279653 is a prime.

It is a super-2 number, since 2×2279669² = 10393781499122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279663) 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, 162827 + ... + 162840.

It is an arithmetic number, because the mean of its divisors is an integer number (651336).

2^2279669 is an apocalyptic number.

It is an amenable number.

2279669 is a deficient number, since it is larger than the sum of its proper divisors (325675).

2279669 is an equidigital number, since it uses as much as digits as its factorization.

2279669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325674.

The product of its digits is 81648, while the sum is 41.

The square root of 2279669 is about 1509.8572780233. The cubic root of 2279669 is about 131.6105178168.

The spelling of 2279669 in words is "two million, two hundred seventy-nine thousand, six hundred sixty-nine".