2689523 has 2 divisors, whose sum is σ = 2689524. Its totient is φ = 2689522.

The previous prime is 2689501. The next prime is 2689537. The reversal of 2689523 is 3259862.

2689523 is nontrivially palindromic in base 11.

2689523 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 a de Polignac number, because none of the positive numbers 2^k-2689523 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 2⁴ + 6³ + 8⁷ + 9⁵ + 5⁴ + 2¹⁰ + 3¹² .

It is not a weakly prime, because it can be changed into another prime (2689543) 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, 1344761 + 1344762.

It is an arithmetic number, because the mean of its divisors is an integer number (1344762).

2^2689523 is an apocalyptic number.

2689523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2689523 is an equidigital number, since it uses as much as digits as its factorization.

2689523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 2689523 is about 1639.9765242222. The cubic root of 2689523 is about 139.0673207015.

The spelling of 2689523 in words is "two million, six hundred eighty-nine thousand, five hundred twenty-three".