2777222 has 24 divisors (see below), whose sum is σ = 5134104. Its totient is φ = 1119552.

The previous prime is 2777219. The next prime is 2777231. The reversal of 2777222 is 2227772.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 833 + ... + 2499.

It is an arithmetic number, because the mean of its divisors is an integer number (213921).

2^2777222 is an apocalyptic number.

It is a pronic number, being equal to 1666×1667.

2777222 is a deficient number, since it is larger than the sum of its proper divisors (2356882).

2777222 is a wasteful number, since it uses less digits than its factorization.

2777222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700 (or 1693 counting only the distinct ones).

The product of its digits is 5488, while the sum is 29.

The square root of 2777222 is about 1666.4999249925. The cubic root of 2777222 is about 140.5627350356.

The spelling of 2777222 in words is "two million, seven hundred seventy-seven thousand, two hundred twenty-two".