208806043 has 2 divisors, whose sum is σ = 208806044. Its totient is φ = 208806042.

The previous prime is 208806041. The next prime is 208806047. The reversal of 208806043 is 340608802.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 208806043 - 2¹ = 208806041 is a prime.

Together with 208806041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 208805996 and 208806014.

It is not a weakly prime, because it can be changed into another prime (208806041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104403021 + 104403022.

It is an arithmetic number, because the mean of its divisors is an integer number (104403022).

Almost surely, 2^208806043 is an apocalyptic number.

208806043 is a deficient number, since it is larger than the sum of its proper divisors (1).

208806043 is an equidigital number, since it uses as much as digits as its factorization.

208806043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 208806043 is about 14450.1225946357. The cubic root of 208806043 is about 593.2635794852.

The spelling of 208806043 in words is "two hundred eight million, eight hundred six thousand, forty-three".