90836171 has 4 divisors (see below), whose sum is σ = 90885144. Its totient is φ = 90787200.

The previous prime is 90836129. The next prime is 90836173. The reversal of 90836171 is 17163809.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90836171 - 2¹⁴ = 90819787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90836173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21590 + ... + 25451.

It is an arithmetic number, because the mean of its divisors is an integer number (22721286).

Almost surely, 2^90836171 is an apocalyptic number.

90836171 is a deficient number, since it is larger than the sum of its proper divisors (48973).

90836171 is a wasteful number, since it uses less digits than its factorization.

90836171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48972.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 90836171 is about 9530.8011730389. The cubic root of 90836171 is about 449.5240581151.

The spelling of 90836171 in words is "ninety million, eight hundred thirty-six thousand, one hundred seventy-one".