2748643 has 2 divisors, whose sum is σ = 2748644. Its totient is φ = 2748642.

The previous prime is 2748617. The next prime is 2748659. The reversal of 2748643 is 3468472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2748643 - 2⁹ = 2748131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2748599 and 2748608.

It is not a weakly prime, because it can be changed into another prime (2748443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374321 + 1374322.

It is an arithmetic number, because the mean of its divisors is an integer number (1374322).

2^2748643 is an apocalyptic number.

2748643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2748643 is an equidigital number, since it uses as much as digits as its factorization.

2748643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 34.

The square root of 2748643 is about 1657.9031937963. The cubic root of 2748643 is about 140.0789180905.

The spelling of 2748643 in words is "two million, seven hundred forty-eight thousand, six hundred forty-three".