167964197 has 2 divisors, whose sum is σ = 167964198. Its totient is φ = 167964196.

The previous prime is 167964163. The next prime is 167964221. The reversal of 167964197 is 791469761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113337316 + 54626881 = 10646^2 + 7391^2 .

It is a cyclic number.

It is not a de Polignac number, because 167964197 - 2⁸ = 167963941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167967197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83982098 + 83982099.

It is an arithmetic number, because the mean of its divisors is an integer number (83982099).

Almost surely, 2^167964197 is an apocalyptic number.

It is an amenable number.

167964197 is a deficient number, since it is larger than the sum of its proper divisors (1).

167964197 is an equidigital number, since it uses as much as digits as its factorization.

167964197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 50.

The square root of 167964197 is about 12960.1001925139. The cubic root of 167964197 is about 551.7456349667.

The spelling of 167964197 in words is "one hundred sixty-seven million, nine hundred sixty-four thousand, one hundred ninety-seven".