2646493 has 2 divisors, whose sum is σ = 2646494. Its totient is φ = 2646492.

The previous prime is 2646473. The next prime is 2646517. The reversal of 2646493 is 3946462.

2646493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2566404 + 80089 = 1602^2 + 283^2 .

It is a cyclic number.

It is not a de Polignac number, because 2646493 - 2¹³ = 2638301 is a prime.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2646443) 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, 1323246 + 1323247.

It is an arithmetic number, because the mean of its divisors is an integer number (1323247).

2^2646493 is an apocalyptic number.

It is an amenable number.

2646493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646493 is an equidigital number, since it uses as much as digits as its factorization.

2646493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 34.

The square root of 2646493 is about 1626.8045365071. The cubic root of 2646493 is about 138.3216783458.

The spelling of 2646493 in words is "two million, six hundred forty-six thousand, four hundred ninety-three".