6523493 has 2 divisors, whose sum is σ = 6523494. Its totient is φ = 6523492.

The previous prime is 6523477. The next prime is 6523511. The reversal of 6523493 is 3943256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6466849 + 56644 = 2543^2 + 238^2 .

It is a cyclic number.

It is not a de Polignac number, because 6523493 - 2⁴ = 6523477 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6573493) 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, 3261746 + 3261747.

It is an arithmetic number, because the mean of its divisors is an integer number (3261747).

Almost surely, 2^6523493 is an apocalyptic number.

It is an amenable number.

6523493 is a deficient number, since it is larger than the sum of its proper divisors (1).

6523493 is an equidigital number, since it uses as much as digits as its factorization.

6523493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 32.

The square root of 6523493 is about 2554.1129575647. The cubic root of 6523493 is about 186.8501282320.

The spelling of 6523493 in words is "six million, five hundred twenty-three thousand, four hundred ninety-three".