90259171 has 16 divisors (see below), whose sum is σ = 97598304. Its totient is φ = 83165184.

The previous prime is 90259121. The next prime is 90259189. The reversal of 90259171 is 17195209.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90259171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90259121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318796 + ... + 319078.

It is an arithmetic number, because the mean of its divisors is an integer number (6099894).

Almost surely, 2^90259171 is an apocalyptic number.

90259171 is a deficient number, since it is larger than the sum of its proper divisors (7339133).

90259171 is a wasteful number, since it uses less digits than its factorization.

90259171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 90259171 is about 9500.4826719488. The cubic root of 90259171 is about 448.5702291233.

The spelling of 90259171 in words is "ninety million, two hundred fifty-nine thousand, one hundred seventy-one".