889630559 has 4 divisors (see below), whose sum is σ = 936453240. Its totient is φ = 842807880.

The previous prime is 889630541. The next prime is 889630583. The reversal of 889630559 is 955036988.

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

It is a cyclic number.

It is not a de Polignac number, because 889630559 - 2²⁸ = 621195103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 889630559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889630589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23411312 + ... + 23411349.

It is an arithmetic number, because the mean of its divisors is an integer number (234113310).

Almost surely, 2^889630559 is an apocalyptic number.

889630559 is a deficient number, since it is larger than the sum of its proper divisors (46822681).

889630559 is a wasteful number, since it uses less digits than its factorization.

889630559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46822680.

The product of its (nonzero) digits is 2332800, while the sum is 53.

The square root of 889630559 is about 29826.6752924291. The cubic root of 889630559 is about 961.7670575464.

The spelling of 889630559 in words is "eight hundred eighty-nine million, six hundred thirty thousand, five hundred fifty-nine".