2777249 has 8 divisors (see below), whose sum is σ = 2939040. Its totient is φ = 2617056.

The previous prime is 2777233. The next prime is 2777251. The reversal of 2777249 is 9427772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2777249 - 2⁴ = 2777233 is a prime.

It is a super-3 number, since 3×2777249³ = 64263697833326307747, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 5714 + ... + 6180.

It is an arithmetic number, because the mean of its divisors is an integer number (367380).

2^2777249 is an apocalyptic number.

It is an amenable number.

2777249 is a deficient number, since it is larger than the sum of its proper divisors (161791).

2777249 is a wasteful number, since it uses less digits than its factorization.

2777249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799.

The product of its digits is 49392, while the sum is 38.

The square root of 2777249 is about 1666.5080257833. The cubic root of 2777249 is about 140.5631905486.

The spelling of 2777249 in words is "two million, seven hundred seventy-seven thousand, two hundred forty-nine".