208423067 has 2 divisors, whose sum is σ = 208423068. Its totient is φ = 208423066.

The previous prime is 208423063. The next prime is 208423069. The reversal of 208423067 is 760324802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 208423067 - 2² = 208423063 is a prime.

Together with 208423069, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (208423063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104211533 + 104211534.

It is an arithmetic number, because the mean of its divisors is an integer number (104211534).

Almost surely, 2^208423067 is an apocalyptic number.

208423067 is a deficient number, since it is larger than the sum of its proper divisors (1).

208423067 is an equidigital number, since it uses as much as digits as its factorization.

208423067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 208423067 is about 14436.8648604882. The cubic root of 208423067 is about 592.9006513521.

Adding to 208423067 its reverse (760324802), we get a palindrome (968747869).

The spelling of 208423067 in words is "two hundred eight million, four hundred twenty-three thousand, sixty-seven".