8388361 has 4 divisors (see below), whose sum is σ = 8881812. Its totient is φ = 7894912.

The previous prime is 8388319. The next prime is 8388371. The reversal of 8388361 is 1638838.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1638838 = 2 ⋅819419.

It can be written as a sum of positive squares in 2 ways, for example, as 3240000 + 5148361 = 1800^2 + 2269^2 .

It is a cyclic number.

It is not a de Polignac number, because 8388361 - 2²¹ = 6291209 is a prime.

It is a Duffinian number.

8388361 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8388361.

It is not an unprimeable number, because it can be changed into a prime (8388301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246700 + ... + 246733.

It is an arithmetic number, because the mean of its divisors is an integer number (2220453).

Almost surely, 2^8388361 is an apocalyptic number.

It is an amenable number.

8388361 is a deficient number, since it is larger than the sum of its proper divisors (493451).

8388361 is a wasteful number, since it uses less digits than its factorization.

8388361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493450.

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

The square root of 8388361 is about 2896.2667349538. The cubic root of 8388361 is about 203.1853403694.

The spelling of 8388361 in words is "eight million, three hundred eighty-eight thousand, three hundred sixty-one".