197766323 has 2 divisors, whose sum is σ = 197766324. Its totient is φ = 197766322.

The previous prime is 197766241. The next prime is 197766347. The reversal of 197766323 is 323667791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197766323 - 2¹⁴ = 197749939 is a prime.

It is a super-2 number, since 2×197766323² = 78223037025880658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (197766353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98883161 + 98883162.

It is an arithmetic number, because the mean of its divisors is an integer number (98883162).

Almost surely, 2^197766323 is an apocalyptic number.

197766323 is a deficient number, since it is larger than the sum of its proper divisors (1).

197766323 is an equidigital number, since it uses as much as digits as its factorization.

197766323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 44.

The square root of 197766323 is about 14062.9414775146. The cubic root of 197766323 is about 582.6182883429.

The spelling of 197766323 in words is "one hundred ninety-seven million, seven hundred sixty-six thousand, three hundred twenty-three".