196724057 has 2 divisors, whose sum is σ = 196724058. Its totient is φ = 196724056.

The previous prime is 196723987. The next prime is 196724071. The reversal of 196724057 is 750427691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192127321 + 4596736 = 13861^2 + 2144^2 .

It is a cyclic number.

It is not a de Polignac number, because 196724057 - 2⁸ = 196723801 is a prime.

It is not a weakly prime, because it can be changed into another prime (196724257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98362028 + 98362029.

It is an arithmetic number, because the mean of its divisors is an integer number (98362029).

Almost surely, 2^196724057 is an apocalyptic number.

It is an amenable number.

196724057 is a deficient number, since it is larger than the sum of its proper divisors (1).

196724057 is an equidigital number, since it uses as much as digits as its factorization.

196724057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 196724057 is about 14025.8353405421. The cubic root of 196724057 is about 581.5929821121.

The spelling of 196724057 in words is "one hundred ninety-six million, seven hundred twenty-four thousand, fifty-seven".