90169317 has 24 divisors (see below), whose sum is σ = 149417216. Its totient is φ = 51329376.

The previous prime is 90169301. The next prime is 90169319. The reversal of 90169317 is 71396109.

It is not a de Polignac number, because 90169317 - 2⁴ = 90169301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90169319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14868 + ... + 20034.

Almost surely, 2^90169317 is an apocalyptic number.

It is an amenable number.

90169317 is a deficient number, since it is larger than the sum of its proper divisors (59247899).

90169317 is a wasteful number, since it uses less digits than its factorization.

90169317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5457 (or 5454 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 90169317 is about 9495.7525768103. The cubic root of 90169317 is about 448.4213274981.

The spelling of 90169317 in words is "ninety million, one hundred sixty-nine thousand, three hundred seventeen".