8139368 has 16 divisors (see below), whose sum is σ = 15320580. Its totient is φ = 4053888.

The previous prime is 8139359. The next prime is 8139377. The reversal of 8139368 is 8639318.

It is an interprime number because it is at equal distance from previous prime (8139359) and next prime (8139377).

It can be written as a sum of positive squares in 2 ways, for example, as 6646084 + 1493284 = 2578^2 + 1222^2 .

It is a super-2 number, since 2×8139368² = 132498622878848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380 + ... + 4052.

Almost surely, 2^8139368 is an apocalyptic number.

It is an amenable number.

8139368 is a deficient number, since it is larger than the sum of its proper divisors (7181212).

8139368 is a wasteful number, since it uses less digits than its factorization.

8139368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3956 (or 3952 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 8139368 is about 2852.9577634448. The cubic root of 8139368 is about 201.1547202748.

The spelling of 8139368 in words is "eight million, one hundred thirty-nine thousand, three hundred sixty-eight".