196996257 has 12 divisors (see below), whose sum is σ = 285997140. Its totient is φ = 130663008.

The previous prime is 196996243. The next prime is 196996277. The reversal of 196996257 is 752699691.

196996257 is a `hidden beast` number, since 1 + 9 + 6 + 9 + 9 + 625 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 188210961 + 8785296 = 13719^2 + 2964^2 .

It is not a de Polignac number, because 196996257 - 2⁸ = 196996001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196996277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53782 + ... + 57327.

It is an arithmetic number, because the mean of its divisors is an integer number (23833095).

Almost surely, 2^196996257 is an apocalyptic number.

It is an amenable number.

196996257 is a deficient number, since it is larger than the sum of its proper divisors (89000883).

196996257 is a wasteful number, since it uses less digits than its factorization.

196996257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111312 (or 111309 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 54.

The square root of 196996257 is about 14035.5355081308. The cubic root of 196996257 is about 581.8611015827.

The spelling of 196996257 in words is "one hundred ninety-six million, nine hundred ninety-six thousand, two hundred fifty-seven".