90869271 has 4 divisors (see below), whose sum is σ = 121159032. Its totient is φ = 60579512.

The previous prime is 90869269. The next prime is 90869287. The reversal of 90869271 is 17296809.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17296809 = 3 ⋅5765603.

It is a cyclic number.

It is not a de Polignac number, because 90869271 - 2¹ = 90869269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90869201) 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, 15144876 + ... + 15144881.

It is an arithmetic number, because the mean of its divisors is an integer number (30289758).

Almost surely, 2^90869271 is an apocalyptic number.

90869271 is a deficient number, since it is larger than the sum of its proper divisors (30289761).

90869271 is a wasteful number, since it uses less digits than its factorization.

90869271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30289760.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 90869271 is about 9532.5374900915. The cubic root of 90869271 is about 449.5786525174.

The spelling of 90869271 in words is "ninety million, eight hundred sixty-nine thousand, two hundred seventy-one".