196979071 has 2 divisors, whose sum is σ = 196979072. Its totient is φ = 196979070.

The previous prime is 196978997. The next prime is 196979113. The reversal of 196979071 is 170979691.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196979071 - 2⁹ = 196978559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196979371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98489535 + 98489536.

It is an arithmetic number, because the mean of its divisors is an integer number (98489536).

Almost surely, 2^196979071 is an apocalyptic number.

196979071 is a deficient number, since it is larger than the sum of its proper divisors (1).

196979071 is an equidigital number, since it uses as much as digits as its factorization.

196979071 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 196979071 is about 14034.9232630606. The cubic root of 196979071 is about 581.8441805240.

The spelling of 196979071 in words is "one hundred ninety-six million, nine hundred seventy-nine thousand, seventy-one".