2777229 has 24 divisors (see below), whose sum is σ = 4938752. Its totient is φ = 1464480.

The previous prime is 2777219. The next prime is 2777231. The reversal of 2777229 is 9227772.

It is not a de Polignac number, because 2777229 - 2⁴ = 2777213 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2777193 and 2777202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2777219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 877 + ... + 2514.

2^2777229 is an apocalyptic number.

It is an amenable number.

2777229 is a deficient number, since it is larger than the sum of its proper divisors (2161523).

2777229 is a wasteful number, since it uses less digits than its factorization.

2777229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3417 (or 3414 counting only the distinct ones).

The product of its digits is 24696, while the sum is 36.

The square root of 2777229 is about 1666.5020252013. The cubic root of 2777229 is about 140.5628531319.

The spelling of 2777229 in words is "two million, seven hundred seventy-seven thousand, two hundred twenty-nine".