871056090 has 24 divisors (see below), whose sum is σ = 2264746068. Its totient is φ = 232281600.

The previous prime is 871056089. The next prime is 871056097. The reversal of 871056090 is 90650178.

871056090 is a `hidden beast` number, since 8 + 7 + 1 + 0 + 560 + 90 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 868421961 + 2634129 = 29469^2 + 1623^2 .

It is not an unprimeable number, because it can be changed into a prime (871056097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4839111 + ... + 4839290.

Almost surely, 2^871056090 is an apocalyptic number.

871056090 is an abundant number, since it is smaller than the sum of its proper divisors (1393689978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

871056090 is a wasteful number, since it uses less digits than its factorization.

871056090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9678414 (or 9678411 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 871056090 is about 29513.6593800227. The cubic root of 871056090 is about 955.0263929184.

The spelling of 871056090 in words is "eight hundred seventy-one million, fifty-six thousand, ninety".