889987625 has 8 divisors (see below), whose sum is σ = 1110704712. Its totient is φ = 711990000.

The previous prime is 889987613. The next prime is 889987633. The reversal of 889987625 is 526789988.

It can be written as a sum of positive squares in 4 ways, for example, as 27331984 + 862655641 = 5228^2 + 29371^2 .

It is not a de Polignac number, because 889987625 - 2⁶ = 889987561 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3559826 + ... + 3560075.

It is an arithmetic number, because the mean of its divisors is an integer number (138838089).

Almost surely, 2^889987625 is an apocalyptic number.

It is an amenable number.

889987625 is a deficient number, since it is larger than the sum of its proper divisors (220717087).

889987625 is an equidigital number, since it uses as much as digits as its factorization.

889987625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7119916 (or 7119906 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 62.

The square root of 889987625 is about 29832.6603741604. The cubic root of 889987625 is about 961.8957133419.

The spelling of 889987625 in words is "eight hundred eighty-nine million, nine hundred eighty-seven thousand, six hundred twenty-five".