8388736 has 16 divisors (see below), whose sum is σ = 16712190. Its totient is φ = 4194304.

The previous prime is 8388733. The next prime is 8388739. The reversal of 8388736 is 6378838.

It is an interprime number because it is at equal distance from previous prime (8388733) and next prime (8388739).

It can be written as a sum of positive squares in only one way, i.e., 4227136 + 4161600 = 2056^2 + 2040^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 8388692 and 8388701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8388733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (2) of ones.

In principle, a polygon with 8388736 sides can be constructed with ruler and compass.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32641 + ... + 32896.

It is the magic constant of a 256 × 256 magic square.

Almost surely, 2^8388736 is an apocalyptic number.

It is an amenable number.

8388736 is a deficient number, since it is larger than the sum of its proper divisors (8323454).

8388736 is an equidigital number, since it uses as much as digits as its factorization.

8388736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65551 (or 65539 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 8388736 is about 2896.3314727427. The cubic root of 8388736 is about 203.1883681109.

The spelling of 8388736 in words is "eight million, three hundred eighty-eight thousand, seven hundred thirty-six".