196906973 has 2 divisors, whose sum is σ = 196906974. Its totient is φ = 196906972.

The previous prime is 196906961. The next prime is 196906987. The reversal of 196906973 is 379609691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175774564 + 21132409 = 13258^2 + 4597^2 .

It is a cyclic number.

It is not a de Polignac number, because 196906973 - 2¹² = 196902877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196906373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98453486 + 98453487.

It is an arithmetic number, because the mean of its divisors is an integer number (98453487).

Almost surely, 2^196906973 is an apocalyptic number.

It is an amenable number.

196906973 is a deficient number, since it is larger than the sum of its proper divisors (1).

196906973 is an equidigital number, since it uses as much as digits as its factorization.

196906973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 196906973 is about 14032.3545066393. The cubic root of 196906973 is about 581.7731832674.

The spelling of 196906973 in words is "one hundred ninety-six million, nine hundred six thousand, nine hundred seventy-three".