2748691 has 4 divisors (see below), whose sum is σ = 2998584. Its totient is φ = 2498800.

The previous prime is 2748659. The next prime is 2748703. The reversal of 2748691 is 1968472.

2748691 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.

It is a cyclic number.

It is not a de Polignac number, because 2748691 - 2⁵ = 2748659 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 7⁶ + 4⁵ + 8⁷ + 6⁴ + 9⁶ + 1 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2748691.

It is not an unprimeable number, because it can be changed into a prime (2748601) 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, 124930 + ... + 124951.

It is an arithmetic number, because the mean of its divisors is an integer number (749646).

2^2748691 is an apocalyptic number.

2748691 is a deficient number, since it is larger than the sum of its proper divisors (249893).

2748691 is a wasteful number, since it uses less digits than its factorization.

2748691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249892.

The product of its digits is 24192, while the sum is 37.

The square root of 2748691 is about 1657.9176698497. The cubic root of 2748691 is about 140.0797334927.

The spelling of 2748691 in words is "two million, seven hundred forty-eight thousand, six hundred ninety-one".