889382091 has 16 divisors (see below), whose sum is σ = 1283125760. Its totient is φ = 544713120.

The previous prime is 889382089. The next prime is 889382093. The reversal of 889382091 is 190283988.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (889382089) and next prime (889382093).

It is not a de Polignac number, because 889382091 - 2¹ = 889382089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 889382091.

It is not an unprimeable number, because it can be changed into a prime (889382093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45811 + ... + 62268.

It is an arithmetic number, because the mean of its divisors is an integer number (80195360).

Almost surely, 2^889382091 is an apocalyptic number.

889382091 is a deficient number, since it is larger than the sum of its proper divisors (393743669).

889382091 is a wasteful number, since it uses less digits than its factorization.

889382091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108306.

The product of its (nonzero) digits is 248832, while the sum is 48.

The square root of 889382091 is about 29822.5098038378. The cubic root of 889382091 is about 961.6775107918.

The spelling of 889382091 in words is "eight hundred eighty-nine million, three hundred eighty-two thousand, ninety-one".