889465009 has 4 divisors (see below), whose sum is σ = 889529716. Its totient is φ = 889400304.

The previous prime is 889464977. The next prime is 889465033. The reversal of 889465009 is 900564988.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 156950784 + 732514225 = 12528^2 + 27065^2 .

It is a cyclic number.

It is not a de Polignac number, because 889465009 - 2⁵ = 889464977 is a prime.

It is a super-2 number, since 2×889465009² = 1582296004470740162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889465099) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2634 + ... + 42259.

It is an arithmetic number, because the mean of its divisors is an integer number (222382429).

Almost surely, 2^889465009 is an apocalyptic number.

It is an amenable number.

889465009 is a deficient number, since it is larger than the sum of its proper divisors (64707).

889465009 is a wasteful number, since it uses less digits than its factorization.

889465009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64706.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 889465009 is about 29823.8999629492. The cubic root of 889465009 is about 961.7073959217.

The spelling of 889465009 in words is "eight hundred eighty-nine million, four hundred sixty-five thousand, nine".