889117049 has 16 divisors (see below), whose sum is σ = 936883584. Its totient is φ = 842160000.

The previous prime is 889117037. The next prime is 889117087. The reversal of 889117049 is 940711988.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889117049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 889116994 and 889117012.

It is not an unprimeable number, because it can be changed into a prime (889117849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1344779 + ... + 1345439.

It is an arithmetic number, because the mean of its divisors is an integer number (58555224).

Almost surely, 2^889117049 is an apocalyptic number.

It is an amenable number.

889117049 is a deficient number, since it is larger than the sum of its proper divisors (47766535).

889117049 is a wasteful number, since it uses less digits than its factorization.

889117049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 889117049 is about 29818.0658158775. The cubic root of 889117049 is about 961.5819724562.

The spelling of 889117049 in words is "eight hundred eighty-nine million, one hundred seventeen thousand, forty-nine".