90801271 has 16 divisors (see below), whose sum is σ = 101049120. Its totient is φ = 80903680.

The previous prime is 90801259. The next prime is 90801307. The reversal of 90801271 is 17210809.

It is not a de Polignac number, because 90801271 - 2¹⁷ = 90670199 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 (90801241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133785 + ... + 134461.

It is an arithmetic number, because the mean of its divisors is an integer number (6315570).

Almost surely, 2^90801271 is an apocalyptic number.

90801271 is a deficient number, since it is larger than the sum of its proper divisors (10247849).

90801271 is a wasteful number, since it uses less digits than its factorization.

90801271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 90801271 is about 9528.9700912533. The cubic root of 90801271 is about 449.4664804670.

The spelling of 90801271 in words is "ninety million, eight hundred one thousand, two hundred seventy-one".