194306897 has 2 divisors, whose sum is σ = 194306898. Its totient is φ = 194306896.

The previous prime is 194306843. The next prime is 194306909. The reversal of 194306897 is 798603491.

194306897 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., 193794241 + 512656 = 13921^2 + 716^2 .

It is a cyclic number.

It is not a de Polignac number, because 194306897 - 2²⁰ = 193258321 is a prime.

It is not a weakly prime, because it can be changed into another prime (194306807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97153448 + 97153449.

It is an arithmetic number, because the mean of its divisors is an integer number (97153449).

Almost surely, 2^194306897 is an apocalyptic number.

It is an amenable number.

194306897 is a deficient number, since it is larger than the sum of its proper divisors (1).

194306897 is an equidigital number, since it uses as much as digits as its factorization.

194306897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 194306897 is about 13939.4008838257. The cubic root of 194306897 is about 579.2011366151.

The spelling of 194306897 in words is "one hundred ninety-four million, three hundred six thousand, eight hundred ninety-seven".