889778446 has 16 divisors (see below), whose sum is σ = 1366637184. Its totient is φ = 434246904.

The previous prime is 889778431. The next prime is 889778447. The reversal of 889778446 is 644877988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889778447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176655 + ... + 181621.

It is an arithmetic number, because the mean of its divisors is an integer number (85414824).

Almost surely, 2^889778446 is an apocalyptic number.

889778446 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

889778446 is a deficient number, since it is larger than the sum of its proper divisors (476858738).

889778446 is a wasteful number, since it uses less digits than its factorization.

889778446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7095.

The product of its digits is 21676032, while the sum is 61.

The square root of 889778446 is about 29829.1542957557. The cubic root of 889778446 is about 961.8203474440.

The spelling of 889778446 in words is "eight hundred eighty-nine million, seven hundred seventy-eight thousand, four hundred forty-six".