90006271 has 4 divisors (see below), whose sum is σ = 90059200. Its totient is φ = 89953344.

The previous prime is 90006263. The next prime is 90006289. The reversal of 90006271 is 17260009.

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 90006271 - 2³ = 90006263 is a prime.

It is a super-2 number, since 2×90006271² = 16202257638650882, 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 (90006221) 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, 23826 + ... + 27343.

It is an arithmetic number, because the mean of its divisors is an integer number (22514800).

Almost surely, 2^90006271 is an apocalyptic number.

90006271 is a deficient number, since it is larger than the sum of its proper divisors (52929).

90006271 is a wasteful number, since it uses less digits than its factorization.

90006271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52928.

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

The square root of 90006271 is about 9487.1634854681. The cubic root of 90006271 is about 448.1508828914.

The spelling of 90006271 in words is "ninety million, six thousand, two hundred seventy-one".