8078378 has 16 divisors (see below), whose sum is σ = 15107904. Its totient is φ = 3147360.

The previous prime is 8078351. The next prime is 8078387. The reversal of 8078378 is 8738708.

It is a super-2 number, since 2×8078378² = 130520382221768, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 26075 + ... + 26382.

It is an arithmetic number, because the mean of its divisors is an integer number (944244).

Almost surely, 2^8078378 is an apocalyptic number.

8078378 is a deficient number, since it is larger than the sum of its proper divisors (7029526).

8078378 is a wasteful number, since it uses less digits than its factorization.

8078378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52477.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 8078378 is about 2842.2487575861. The cubic root of 8078378 is about 200.6510285100.

The spelling of 8078378 in words is "eight million, seventy-eight thousand, three hundred seventy-eight".