8398144 has 14 divisors (see below), whose sum is σ = 16665194. Its totient is φ = 4199040.

The previous prime is 8398141. The next prime is 8398147. The reversal of 8398144 is 4418938.

It is an interprime number because it is at equal distance from previous prime (8398141) and next prime (8398147).

It can be written as a sum of positive squares in only one way, i.e., 8340544 + 57600 = 2888^2 + 240^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8398141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65547 + ... + 65674.

It is an arithmetic number, because the mean of its divisors is an integer number (1190371).

Almost surely, 2^8398144 is an apocalyptic number.

It is an amenable number.

8398144 is a deficient number, since it is larger than the sum of its proper divisors (8267050).

8398144 is a wasteful number, since it uses less digits than its factorization.

8398144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131233 (or 131223 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 8398144 is about 2897.9551411297. The cubic root of 8398144 is about 203.2642985805.

The spelling of 8398144 in words is "eight million, three hundred ninety-eight thousand, one hundred forty-four".