206630443 has 2 divisors, whose sum is σ = 206630444. Its totient is φ = 206630442.

The previous prime is 206630429. The next prime is 206630477. The reversal of 206630443 is 344036602.

206630443 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206630443 is a prime.

It is a super-2 number, since 2×206630443² = 85392279948752498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (206630483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103315221 + 103315222.

It is an arithmetic number, because the mean of its divisors is an integer number (103315222).

Almost surely, 2^206630443 is an apocalyptic number.

206630443 is a deficient number, since it is larger than the sum of its proper divisors (1).

206630443 is an equidigital number, since it uses as much as digits as its factorization.

206630443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 206630443 is about 14374.6458391155. The cubic root of 206630443 is about 591.1959300482.

The spelling of 206630443 in words is "two hundred six million, six hundred thirty thousand, four hundred forty-three".