10089891 has 24 divisors (see below), whose sum is σ = 17637984. Its totient is φ = 5425920.

The previous prime is 10089889. The next prime is 10089899. The reversal of 10089891 is 19898001.

It is not a de Polignac number, because 10089891 - 2¹ = 10089889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10089899) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3640 + ... + 5781.

It is an arithmetic number, because the mean of its divisors is an integer number (734916).

Almost surely, 2^10089891 is an apocalyptic number.

10089891 is a deficient number, since it is larger than the sum of its proper divisors (7548093).

10089891 is a wasteful number, since it uses less digits than its factorization.

10089891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9451 (or 9448 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 10089891 is about 3176.4588774294. The cubic root of 10089891 is about 216.0870919371.

The spelling of 10089891 in words is "ten million, eighty-nine thousand, eight hundred ninety-one".