208828897 has 2 divisors, whose sum is σ = 208828898. Its totient is φ = 208828896.

The previous prime is 208828889. The next prime is 208828903. The reversal of 208828897 is 798828802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205176976 + 3651921 = 14324^2 + 1911^2 .

It is a cyclic number.

It is not a de Polignac number, because 208828897 - 2³ = 208828889 is a prime.

It is not a weakly prime, because it can be changed into another prime (208828817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104414448 + 104414449.

It is an arithmetic number, because the mean of its divisors is an integer number (104414449).

Almost surely, 2^208828897 is an apocalyptic number.

It is an amenable number.

208828897 is a deficient number, since it is larger than the sum of its proper divisors (1).

208828897 is an equidigital number, since it uses as much as digits as its factorization.

208828897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1032192, while the sum is 52.

The square root of 208828897 is about 14450.9133621374. The cubic root of 208828897 is about 593.2852230977.

The spelling of 208828897 in words is "two hundred eight million, eight hundred twenty-eight thousand, eight hundred ninety-seven".