2747489 has 8 divisors (see below), whose sum is σ = 3009960. Its totient is φ = 2496256.

The previous prime is 2747483. The next prime is 2747491. The reversal of 2747489 is 9847472.

2747489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 187489 + 2560000 = 433^2 + 1600^2 .

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 2747489 - 2⁴ = 2747473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2747483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2294 + ... + 3279.

It is an arithmetic number, because the mean of its divisors is an integer number (376245).

2^2747489 is an apocalyptic number.

2747489 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2747489 is a deficient number, since it is larger than the sum of its proper divisors (262471).

2747489 is a wasteful number, since it uses less digits than its factorization.

2747489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619.

The product of its digits is 112896, while the sum is 41.

The square root of 2747489 is about 1657.5551272884. Note that the first 3 decimals coincide. The cubic root of 2747489 is about 140.0593116035.

The spelling of 2747489 in words is "two million, seven hundred forty-seven thousand, four hundred eighty-nine".