197005957 has 2 divisors, whose sum is σ = 197005958. Its totient is φ = 197005956.

The previous prime is 197005909. The next prime is 197005969. The reversal of 197005957 is 759500791.

197005957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186759556 + 10246401 = 13666^2 + 3201^2 .

It is a cyclic number.

It is not a de Polignac number, because 197005957 - 2¹¹ = 197003909 is a prime.

It is a super-2 number, since 2×197005957² = 77622694186971698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197005657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98502978 + 98502979.

It is an arithmetic number, because the mean of its divisors is an integer number (98502979).

Almost surely, 2^197005957 is an apocalyptic number.

It is an amenable number.

197005957 is a deficient number, since it is larger than the sum of its proper divisors (1).

197005957 is an equidigital number, since it uses as much as digits as its factorization.

197005957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 99225, while the sum is 43.

The square root of 197005957 is about 14035.8810553524. The cubic root of 197005957 is about 581.8706516120.

The spelling of 197005957 in words is "one hundred ninety-seven million, five thousand, nine hundred fifty-seven".