2641663 has 2 divisors, whose sum is σ = 2641664. Its totient is φ = 2641662.

The previous prime is 2641657. The next prime is 2641669. The reversal of 2641663 is 3661462.

It is a balanced prime because it is at equal distance from previous prime (2641657) and next prime (2641669).

It is a cyclic number.

It is not a de Polignac number, because 2641663 - 2⁵ = 2641631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2641669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320831 + 1320832.

It is an arithmetic number, because the mean of its divisors is an integer number (1320832).

2^2641663 is an apocalyptic number.

2641663 is a deficient number, since it is larger than the sum of its proper divisors (1).

2641663 is an equidigital number, since it uses as much as digits as its factorization.

2641663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

The square root of 2641663 is about 1625.3193532349. The cubic root of 2641663 is about 138.2374787963.

The spelling of 2641663 in words is "two million, six hundred forty-one thousand, six hundred sixty-three".