889431949 has 16 divisors (see below), whose sum is σ = 1028325760. Its totient is φ = 753546240.

The previous prime is 889431947. The next prime is 889431953. The reversal of 889431949 is 949134988.

889431949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 889431949 - 2¹ = 889431947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 889431949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889431947) 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, 232597 + ... + 236389.

It is an arithmetic number, because the mean of its divisors is an integer number (64270360).

Almost surely, 2^889431949 is an apocalyptic number.

It is an amenable number.

889431949 is a deficient number, since it is larger than the sum of its proper divisors (138893811).

889431949 is a wasteful number, since it uses less digits than its factorization.

889431949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180.

The product of its digits is 2239488, while the sum is 55.

The square root of 889431949 is about 29823.3457043304. The cubic root of 889431949 is about 961.6954807292.

The spelling of 889431949 in words is "eight hundred eighty-nine million, four hundred thirty-one thousand, nine hundred forty-nine".