891027126 has 24 divisors (see below), whose sum is σ = 2106064584. Its totient is φ = 270008160.

The previous prime is 891027121. The next prime is 891027139. The reversal of 891027126 is 621720198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891027121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2249871 + ... + 2250266.

It is an arithmetic number, because the mean of its divisors is an integer number (87752691).

Almost surely, 2^891027126 is an apocalyptic number.

891027126 is an abundant number, since it is smaller than the sum of its proper divisors (1215037458).

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

891027126 is a wasteful number, since it uses less digits than its factorization.

891027126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500156 (or 4500153 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 891027126 is about 29850.0774873366. The cubic root of 891027126 is about 962.2700640597.

The spelling of 891027126 in words is "eight hundred ninety-one million, twenty-seven thousand, one hundred twenty-six".