2204779 has 4 divisors (see below), whose sum is σ = 2320840. Its totient is φ = 2088720.

The previous prime is 2204773. The next prime is 2204789. The reversal of 2204779 is 9774022.

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 2204779 - 2⁷ = 2204651 is a prime.

It is a super-2 number, since 2×2204779² = 9722100877682, which contains 22 as substring.

It is a Duffinian number.

2204779 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2204779.

It is not an unprimeable number, because it can be changed into a prime (2204773) 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, 58002 + ... + 58039.

It is an arithmetic number, because the mean of its divisors is an integer number (580210).

2^2204779 is an apocalyptic number.

2204779 is a deficient number, since it is larger than the sum of its proper divisors (116061).

2204779 is a wasteful number, since it uses less digits than its factorization.

2204779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116060.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 2204779 is about 1484.8498240563. The cubic root of 2204779 is about 130.1532512206.

The spelling of 2204779 in words is "two million, two hundred four thousand, seven hundred seventy-nine".