2623723 has 2 divisors, whose sum is σ = 2623724. Its totient is φ = 2623722.

The previous prime is 2623721. The next prime is 2623757. The reversal of 2623723 is 3273262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2623723 - 2¹ = 2623721 is a prime.

Together with 2623721, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 2 + 6 + 2¹⁹ + 3⁴ + 7 + 2²¹ + 3⁷ .

It is not a weakly prime, because it can be changed into another prime (2623721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1311861 + 1311862.

It is an arithmetic number, because the mean of its divisors is an integer number (1311862).

2^2623723 is an apocalyptic number.

2623723 is a deficient number, since it is larger than the sum of its proper divisors (1).

2623723 is an equidigital number, since it uses as much as digits as its factorization.

2623723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 25.

The square root of 2623723 is about 1619.7910359056. The cubic root of 2623723 is about 137.9238360087.

Adding to 2623723 its reverse (3273262), we get a palindrome (5896985).

The spelling of 2623723 in words is "two million, six hundred twenty-three thousand, seven hundred twenty-three".