889715745 has 20 divisors (see below), whose sum is σ = 1594898580. Its totient is φ = 474514848.

The previous prime is 889715731. The next prime is 889715747. The reversal of 889715745 is 547517988.

889715745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 216001809 + 673713936 = 14697^2 + 25956^2 .

It is not a de Polignac number, because 889715745 - 2⁶ = 889715681 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 889715691 and 889715700.

It is not an unprimeable number, because it can be changed into a prime (889715747) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1098010 + ... + 1098819.

It is an arithmetic number, because the mean of its divisors is an integer number (79744929).

Almost surely, 2^889715745 is an apocalyptic number.

It is an amenable number.

889715745 is a deficient number, since it is larger than the sum of its proper divisors (705182835).

889715745 is a wasteful number, since it uses less digits than its factorization.

889715745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196846 (or 2196837 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 54.

The square root of 889715745 is about 29828.1032752671. The cubic root of 889715745 is about 961.7977543613.

It can be divided in two parts, 8897 and 15745, that added together give a palindrome (24642).

The spelling of 889715745 in words is "eight hundred eighty-nine million, seven hundred fifteen thousand, seven hundred forty-five".