2643629 has 2 divisors, whose sum is σ = 2643630. Its totient is φ = 2643628.

The previous prime is 2643607. The next prime is 2643647. The reversal of 2643629 is 9263462.

2643629 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 can be written as a sum of positive squares in only one way, i.e., 2592100 + 51529 = 1610^2 + 227^2 .

It is a cyclic number.

It is not a de Polignac number, because 2643629 - 2²⁰ = 1595053 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2643595 and 2643604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2643659) 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, 1321814 + 1321815.

It is an arithmetic number, because the mean of its divisors is an integer number (1321815).

2^2643629 is an apocalyptic number.

It is an amenable number.

2643629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2643629 is an equidigital number, since it uses as much as digits as its factorization.

2643629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 32.

The square root of 2643629 is about 1625.9240449664. The cubic root of 2643629 is about 138.2717637007.

The spelling of 2643629 in words is "two million, six hundred forty-three thousand, six hundred twenty-nine".