9090871 has 2 divisors, whose sum is σ = 9090872. Its totient is φ = 9090870.

The previous prime is 9090859. The next prime is 9090901. The reversal of 9090871 is 1780909.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9090871 - 2¹³ = 9082679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9090811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4545435 + 4545436.

It is an arithmetic number, because the mean of its divisors is an integer number (4545436).

Almost surely, 2^9090871 is an apocalyptic number.

9090871 is a deficient number, since it is larger than the sum of its proper divisors (1).

9090871 is an equidigital number, since it uses as much as digits as its factorization.

9090871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 9090871 is about 3015.1071291084. The cubic root of 9090871 is about 208.7061107486.

The spelling of 9090871 in words is "nine million, ninety thousand, eight hundred seventy-one".