90009167 has 2 divisors, whose sum is σ = 90009168. Its totient is φ = 90009166.

The previous prime is 90009119. The next prime is 90009187. The reversal of 90009167 is 76190009.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90009167 - 2⁸ = 90008911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90009187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45004583 + 45004584.

It is an arithmetic number, because the mean of its divisors is an integer number (45004584).

Almost surely, 2^90009167 is an apocalyptic number.

90009167 is a deficient number, since it is larger than the sum of its proper divisors (1).

90009167 is an equidigital number, since it uses as much as digits as its factorization.

90009167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 90009167 is about 9487.3161115249. The cubic root of 90009167 is about 448.1556893382.

The spelling of 90009167 in words is "ninety million, nine thousand, one hundred sixty-seven".