889287925706761 has 9 divisors (see below), whose sum is σ = 1034478033955911. Its totient is φ = 762246614537352.

The previous prime is 889287925706749. The next prime is 889287925706771. The reversal of 889287925706761 is 167607529782988.

The square root of 889287925706761 is 29820931.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 736314466063225 + 152973459643536 = 27135115^2 + 12368244^2 .

It is not a de Polignac number, because 889287925706761 - 2⁷ = 889287925706633 is a prime.

It is a super-2 number, since 2×889287925706761² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889287925706771) 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 8 ways as a sum of consecutive naturals, for example, 206616451 + ... + 210876583.

It is an arithmetic number, because the mean of its divisors is an integer number (114942003772879).

Almost surely, 2^{889287925706761} is an apocalyptic number.

889287925706761 is the 29820931-st square number.

889287925706761 is the 14910466-th centered octagonal number.

It is an amenable number.

889287925706761 is a deficient number, since it is larger than the sum of its proper divisors (145190108249150).

889287925706761 is an frugal number, since it uses more digits than its factorization.

889287925706761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8520280 (or 4260140 counting only the distinct ones).

The product of its (nonzero) digits is 10241925120, while the sum is 85.

The spelling of 889287925706761 in words is "eight hundred eighty-nine trillion, two hundred eighty-seven billion, nine hundred twenty-five million, seven hundred six thousand, seven hundred sixty-one".