208444057 has 2 divisors, whose sum is σ = 208444058. Its totient is φ = 208444056.

The previous prime is 208444043. The next prime is 208444063. The reversal of 208444057 is 750444802.

It is a happy number.

208444057 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., 106110601 + 102333456 = 10301^2 + 10116^2 .

It is a cyclic number.

It is not a de Polignac number, because 208444057 - 2⁷ = 208443929 is a prime.

It is not a weakly prime, because it can be changed into another prime (208444007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104222028 + 104222029.

It is an arithmetic number, because the mean of its divisors is an integer number (104222029).

Almost surely, 2^208444057 is an apocalyptic number.

It is an amenable number.

208444057 is a deficient number, since it is larger than the sum of its proper divisors (1).

208444057 is an equidigital number, since it uses as much as digits as its factorization.

208444057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 208444057 is about 14437.5918005739. The cubic root of 208444057 is about 592.9205540867.

Adding to 208444057 its reverse (750444802), we get a palindrome (958888859).

The spelling of 208444057 in words is "two hundred eight million, four hundred forty-four thousand, fifty-seven".