989225948 has 6 divisors (see below), whose sum is σ = 1731145416. Its totient is φ = 494612972.

The previous prime is 989225947. The next prime is 989225953. The reversal of 989225948 is 849522989.

It is a junction number, because it is equal to n+sod(n) for n = 989225893 and 989225902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989225947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123653240 + ... + 123653247.

It is an arithmetic number, because the mean of its divisors is an integer number (288524236).

Almost surely, 2^989225948 is an apocalyptic number.

It is an amenable number.

989225948 is a deficient number, since it is larger than the sum of its proper divisors (741919468).

989225948 is a wasteful number, since it uses less digits than its factorization.

989225948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247306491 (or 247306489 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 56.

The square root of 989225948 is about 31451.9625460797. The cubic root of 989225948 is about 996.3956737739.

The spelling of 989225948 in words is "nine hundred eighty-nine million, two hundred twenty-five thousand, nine hundred forty-eight".