8201378 has 16 divisors (see below), whose sum is σ = 13151160. Its totient is φ = 3822336.

The previous prime is 8201377. The next prime is 8201419. The reversal of 8201378 is 8731028.

It can be written as a sum of positive squares in 4 ways, for example, as 7856809 + 344569 = 2803^2 + 587^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8201378.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8201371) by changing a digit.

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, 2600 + ... + 4812.

Almost surely, 2^8201378 is an apocalyptic number.

8201378 is a deficient number, since it is larger than the sum of its proper divisors (4949782).

8201378 is a wasteful number, since it uses less digits than its factorization.

8201378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 8201378 is about 2863.8048117845. The cubic root of 8201378 is about 201.6642627342.

The spelling of 8201378 in words is "eight million, two hundred one thousand, three hundred seventy-eight".