889192387 has 4 divisors (see below), whose sum is σ = 889308576. Its totient is φ = 889076200.

The previous prime is 889192357. The next prime is 889192411. The reversal of 889192387 is 783291988.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889192387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889192357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45739 + ... + 62212.

It is an arithmetic number, because the mean of its divisors is an integer number (222327144).

Almost surely, 2^889192387 is an apocalyptic number.

889192387 is a deficient number, since it is larger than the sum of its proper divisors (116189).

889192387 is a wasteful number, since it uses less digits than its factorization.

889192387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116188.

The product of its digits is 1741824, while the sum is 55.

The square root of 889192387 is about 29819.3290836665. The cubic root of 889192387 is about 961.6091310913.

The spelling of 889192387 in words is "eight hundred eighty-nine million, one hundred ninety-two thousand, three hundred eighty-seven".