8438992 has 20 divisors (see below), whose sum is σ = 16417476. Its totient is φ = 4202240.

The previous prime is 8438981. The next prime is 8439007. The reversal of 8438992 is 2998348.

It is a happy number.

8438992 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5494336 + 2944656 = 2344^2 + 1716^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3558 + ... + 5434.

Almost surely, 2^8438992 is an apocalyptic number.

It is an amenable number.

8438992 is a deficient number, since it is larger than the sum of its proper divisors (7978484).

8438992 is a wasteful number, since it uses less digits than its factorization.

8438992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166 (or 2160 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 8438992 is about 2904.9943201321. The cubic root of 8438992 is about 203.5933202739.

The spelling of 8438992 in words is "eight million, four hundred thirty-eight thousand, nine hundred ninety-two".