196797751 has 2 divisors, whose sum is σ = 196797752. Its totient is φ = 196797750.

The previous prime is 196797743. The next prime is 196797767. The reversal of 196797751 is 157797691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196797751 - 2³ = 196797743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196717751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98398875 + 98398876.

It is an arithmetic number, because the mean of its divisors is an integer number (98398876).

Almost surely, 2^196797751 is an apocalyptic number.

196797751 is a deficient number, since it is larger than the sum of its proper divisors (1).

196797751 is an equidigital number, since it uses as much as digits as its factorization.

196797751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 833490, while the sum is 52.

The square root of 196797751 is about 14028.4621751637. The cubic root of 196797751 is about 581.6655957740.

The spelling of 196797751 in words is "one hundred ninety-six million, seven hundred ninety-seven thousand, seven hundred fifty-one".