2277749 has 4 divisors (see below), whose sum is σ = 2282880. Its totient is φ = 2272620.

The previous prime is 2277733. The next prime is 2277767. The reversal of 2277749 is 9477722.

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.

It is a cyclic number.

It is not a de Polignac number, because 2277749 - 2⁴ = 2277733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2277349) 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, 1829 + ... + 2810.

It is an arithmetic number, because the mean of its divisors is an integer number (570720).

2^2277749 is an apocalyptic number.

It is an amenable number.

2277749 is a deficient number, since it is larger than the sum of its proper divisors (5131).

2277749 is an equidigital number, since it uses as much as digits as its factorization.

2277749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130.

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

The square root of 2277749 is about 1509.2213224044. The cubic root of 2277749 is about 131.5735587716.

The spelling of 2277749 in words is "two million, two hundred seventy-seven thousand, seven hundred forty-nine".