196667087 has 2 divisors, whose sum is σ = 196667088. Its totient is φ = 196667086.

The previous prime is 196667041. The next prime is 196667189. The reversal of 196667087 is 780766691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196667087 - 2⁸ = 196666831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196667017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98333543 + 98333544.

It is an arithmetic number, because the mean of its divisors is an integer number (98333544).

Almost surely, 2^196667087 is an apocalyptic number.

196667087 is a deficient number, since it is larger than the sum of its proper divisors (1).

196667087 is an equidigital number, since it uses as much as digits as its factorization.

196667087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 196667087 is about 14023.8042984063. The cubic root of 196667087 is about 581.5368348508.

The spelling of 196667087 in words is "one hundred ninety-six million, six hundred sixty-seven thousand, eighty-seven".