944788889 has 32 divisors (see below), whose sum is σ = 1168473600. Its totient is φ = 752682240.

The previous prime is 944788861. The next prime is 944788903. The reversal of 944788889 is 988887449.

It is a cyclic number.

It is not a de Polignac number, because 944788889 - 2¹² = 944784793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (944788189) 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 31 ways as a sum of consecutive naturals, for example, 207374 + ... + 211880.

It is an arithmetic number, because the mean of its divisors is an integer number (36514800).

Almost surely, 2^944788889 is an apocalyptic number.

It is an amenable number.

944788889 is a deficient number, since it is larger than the sum of its proper divisors (223684711).

944788889 is a wasteful number, since it uses less digits than its factorization.

944788889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613.

The product of its digits is 37158912, while the sum is 65.

The square root of 944788889 is about 30737.4183854142. The cubic root of 944788889 is about 981.2468126852.

The spelling of 944788889 in words is "nine hundred forty-four million, seven hundred eighty-eight thousand, eight hundred eighty-nine".