196624997 has 2 divisors, whose sum is σ = 196624998. Its totient is φ = 196624996.

The previous prime is 196624979. The next prime is 196625029. The reversal of 196624997 is 799426691.

Together with previous prime (196624979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186295201 + 10329796 = 13649^2 + 3214^2 .

It is a cyclic number.

It is not a de Polignac number, because 196624997 - 2⁶ = 196624933 is a prime.

It is a super-2 number, since 2×196624997² = 77322778890500018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196624927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98312498 + 98312499.

It is an arithmetic number, because the mean of its divisors is an integer number (98312499).

Almost surely, 2^196624997 is an apocalyptic number.

It is an amenable number.

196624997 is a deficient number, since it is larger than the sum of its proper divisors (1).

196624997 is an equidigital number, since it uses as much as digits as its factorization.

196624997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 53.

The square root of 196624997 is about 14022.3035554077. The cubic root of 196624997 is about 581.4953457332.

The spelling of 196624997 in words is "one hundred ninety-six million, six hundred twenty-four thousand, nine hundred ninety-seven".