167740087 has 2 divisors, whose sum is σ = 167740088. Its totient is φ = 167740086.

The previous prime is 167740073. The next prime is 167740091. The reversal of 167740087 is 780047761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 167740087 - 2⁷ = 167739959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167740007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83870043 + 83870044.

It is an arithmetic number, because the mean of its divisors is an integer number (83870044).

Almost surely, 2^167740087 is an apocalyptic number.

167740087 is a deficient number, since it is larger than the sum of its proper divisors (1).

167740087 is an equidigital number, since it uses as much as digits as its factorization.

167740087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 167740087 is about 12951.4511542143. The cubic root of 167740087 is about 551.5001327460.

The spelling of 167740087 in words is "one hundred sixty-seven million, seven hundred forty thousand, eighty-seven".