90034171 has 2 divisors, whose sum is σ = 90034172. Its totient is φ = 90034170.

The previous prime is 90034163. The next prime is 90034181. The reversal of 90034171 is 17143009.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90034171 - 2³ = 90034163 is a prime.

It is not a weakly prime, because it can be changed into another prime (90034111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45017085 + 45017086.

It is an arithmetic number, because the mean of its divisors is an integer number (45017086).

Almost surely, 2^90034171 is an apocalyptic number.

90034171 is a deficient number, since it is larger than the sum of its proper divisors (1).

90034171 is an equidigital number, since it uses as much as digits as its factorization.

90034171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 90034171 is about 9488.6337794226. The cubic root of 90034171 is about 448.1971838058.

The spelling of 90034171 in words is "ninety million, thirty-four thousand, one hundred seventy-one".