2649923 has 2 divisors, whose sum is σ = 2649924. Its totient is φ = 2649922.

The previous prime is 2649893. The next prime is 2649929. The reversal of 2649923 is 3299462.

2649923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2649923 - 2¹² = 2645827 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6⁵ + 4⁵ + 9⁴ + 9⁴ + 2²¹ + 3⁸ .

It is not a weakly prime, because it can be changed into another prime (2649929) 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 as a sum of consecutive naturals, namely, 1324961 + 1324962.

It is an arithmetic number, because the mean of its divisors is an integer number (1324962).

2^2649923 is an apocalyptic number.

2649923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2649923 is an equidigital number, since it uses as much as digits as its factorization.

2649923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 35.

The square root of 2649923 is about 1627.8584090762. The cubic root of 2649923 is about 138.3814100405.

The spelling of 2649923 in words is "two million, six hundred forty-nine thousand, nine hundred twenty-three".