90286271 has 4 divisors (see below), whose sum is σ = 95038200. Its totient is φ = 85534344.

The previous prime is 90286243. The next prime is 90286289. The reversal of 90286271 is 17268209.

It is a happy number.

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 90286271 - 2¹⁸ = 90024127 is a prime.

It is a super-2 number, since 2×90286271² = 16303221462170882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90286241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2375936 + ... + 2375973.

It is an arithmetic number, because the mean of its divisors is an integer number (23759550).

Almost surely, 2^90286271 is an apocalyptic number.

90286271 is a deficient number, since it is larger than the sum of its proper divisors (4751929).

90286271 is a wasteful number, since it uses less digits than its factorization.

90286271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4751928.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 90286271 is about 9501.9088082343. The cubic root of 90286271 is about 448.6151185110.

The spelling of 90286271 in words is "ninety million, two hundred eighty-six thousand, two hundred seventy-one".