2748569 has 4 divisors (see below), whose sum is σ = 2868096. Its totient is φ = 2629044.

The previous prime is 2748563. The next prime is 2748583. The reversal of 2748569 is 9658472.

2748569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2748569 - 2⁸ = 2748313 is a prime.

It is a super-2 number, since 2×2748569² = 15109263095522, which contains 22 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2 + 7² + 4⁹ + 8³ + 5⁹ + 6⁴ + 9⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2748563) 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 3 ways as a sum of consecutive naturals, for example, 59729 + ... + 59774.

It is an arithmetic number, because the mean of its divisors is an integer number (717024).

2^2748569 is an apocalyptic number.

It is an amenable number.

2748569 is a deficient number, since it is larger than the sum of its proper divisors (119527).

2748569 is a wasteful number, since it uses less digits than its factorization.

2748569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119526.

The product of its digits is 120960, while the sum is 41.

The square root of 2748569 is about 1657.8808762996. The cubic root of 2748569 is about 140.0776609935.

Subtracting 2748569 from its reverse (9658472), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2748569 in words is "two million, seven hundred forty-eight thousand, five hundred sixty-nine".