196797901 has 2 divisors, whose sum is σ = 196797902. Its totient is φ = 196797900.

The previous prime is 196797869. The next prime is 196797907. The reversal of 196797901 is 109797691.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195272676 + 1525225 = 13974^2 + 1235^2 .

It is a cyclic number.

It is not a de Polignac number, because 196797901 - 2⁵ = 196797869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196797907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98398950 + 98398951.

It is an arithmetic number, because the mean of its divisors is an integer number (98398951).

Almost surely, 2^196797901 is an apocalyptic number.

It is an amenable number.

196797901 is a deficient number, since it is larger than the sum of its proper divisors (1).

196797901 is an equidigital number, since it uses as much as digits as its factorization.

196797901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214326, while the sum is 49.

The square root of 196797901 is about 14028.4675214365. The cubic root of 196797901 is about 581.6657435566.

The spelling of 196797901 in words is "one hundred ninety-six million, seven hundred ninety-seven thousand, nine hundred one".