2749823 has 2 divisors, whose sum is σ = 2749824. Its totient is φ = 2749822.

The previous prime is 2749787. The next prime is 2749847. The reversal of 2749823 is 3289472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2749823 - 2⁸ = 2749567 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2749883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374911 + 1374912.

It is an arithmetic number, because the mean of its divisors is an integer number (1374912).

2^2749823 is an apocalyptic number.

2749823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2749823 is an equidigital number, since it uses as much as digits as its factorization.

2749823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 2749823 is about 1658.2590268110. The cubic root of 2749823 is about 140.0989606443.

The spelling of 2749823 in words is "two million, seven hundred forty-nine thousand, eight hundred twenty-three".