209048597 has 2 divisors, whose sum is σ = 209048598. Its totient is φ = 209048596.

The previous prime is 209048591. The next prime is 209048611. The reversal of 209048597 is 795840902.

It is a happy number.

209048597 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 can be written as a sum of positive squares in only one way, i.e., 206611876 + 2436721 = 14374^2 + 1561^2 .

It is a cyclic number.

It is not a de Polignac number, because 209048597 - 2²⁰ = 208000021 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (209048591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104524298 + 104524299.

It is an arithmetic number, because the mean of its divisors is an integer number (104524299).

Almost surely, 2^209048597 is an apocalyptic number.

It is an amenable number.

209048597 is a deficient number, since it is larger than the sum of its proper divisors (1).

209048597 is an equidigital number, since it uses as much as digits as its factorization.

209048597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 209048597 is about 14458.5129594990. The cubic root of 209048597 is about 593.4932068937.

The spelling of 209048597 in words is "two hundred nine million, forty-eight thousand, five hundred ninety-seven".