196897307 has 2 divisors, whose sum is σ = 196897308. Its totient is φ = 196897306.

The previous prime is 196897199. The next prime is 196897339. The reversal of 196897307 is 703798691.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196897307 is a prime.

It is not a weakly prime, because it can be changed into another prime (196897397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98448653 + 98448654.

It is an arithmetic number, because the mean of its divisors is an integer number (98448654).

Almost surely, 2^196897307 is an apocalyptic number.

196897307 is a deficient number, since it is larger than the sum of its proper divisors (1).

196897307 is an equidigital number, since it uses as much as digits as its factorization.

196897307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 196897307 is about 14032.0100840899. The cubic root of 196897307 is about 581.7636635240.

The spelling of 196897307 in words is "one hundred ninety-six million, eight hundred ninety-seven thousand, three hundred seven".