90571271 has 8 divisors (see below), whose sum is σ = 108958080. Its totient is φ = 73546488.

The previous prime is 90571267. The next prime is 90571279. The reversal of 90571271 is 17217509.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90571271 - 2² = 90571267 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90571279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340361 + ... + 340626.

It is an arithmetic number, because the mean of its divisors is an integer number (13619760).

Almost surely, 2^90571271 is an apocalyptic number.

90571271 is a deficient number, since it is larger than the sum of its proper divisors (18386809).

90571271 is a wasteful number, since it uses less digits than its factorization.

90571271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681013.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 90571271 is about 9516.8939786046. The cubic root of 90571271 is about 449.0866594305.

The spelling of 90571271 in words is "ninety million, five hundred seventy-one thousand, two hundred seventy-one".