196635097 has 2 divisors, whose sum is σ = 196635098. Its totient is φ = 196635096.

The previous prime is 196635091. The next prime is 196635113. The reversal of 196635097 is 790536691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196588441 + 46656 = 14021^2 + 216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196635097 is a prime.

It is a super-2 number, since 2×196635097² = 77330722744398818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (196635091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98317548 + 98317549.

It is an arithmetic number, because the mean of its divisors is an integer number (98317549).

Almost surely, 2^196635097 is an apocalyptic number.

It is an amenable number.

196635097 is a deficient number, since it is larger than the sum of its proper divisors (1).

196635097 is an equidigital number, since it uses as much as digits as its factorization.

196635097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 196635097 is about 14022.6636913248. The cubic root of 196635097 is about 581.5053020841.

The spelling of 196635097 in words is "one hundred ninety-six million, six hundred thirty-five thousand, ninety-seven".