2774289 has 8 divisors (see below), whose sum is σ = 4227520. Its totient is φ = 1585296.

The previous prime is 2774287. The next prime is 2774293. The reversal of 2774289 is 9824772.

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

It is not a de Polignac number, because 2774289 - 2¹ = 2774287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2774287) 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, 66034 + ... + 66075.

It is an arithmetic number, because the mean of its divisors is an integer number (528440).

2^2774289 is an apocalyptic number.

It is an amenable number.

2774289 is a deficient number, since it is larger than the sum of its proper divisors (1453231).

2774289 is a wasteful number, since it uses less digits than its factorization.

2774289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132119.

The product of its digits is 56448, while the sum is 39.

The square root of 2774289 is about 1665.6197044944. The cubic root of 2774289 is about 140.5132352455.

The spelling of 2774289 in words is "two million, seven hundred seventy-four thousand, two hundred eighty-nine".