8271378 has 12 divisors (see below), whose sum is σ = 17921358. Its totient is φ = 2757120.

The previous prime is 8271377. The next prime is 8271391. The reversal of 8271378 is 8731728.

8271378 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8139609 + 131769 = 2853^2 + 363^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8271371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229743 + ... + 229778.

Almost surely, 2^8271378 is an apocalyptic number.

8271378 is an abundant number, since it is smaller than the sum of its proper divisors (9649980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8271378 is a wasteful number, since it uses less digits than its factorization.

8271378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459529 (or 459526 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 8271378 is about 2876.0003477051. Note that the first 3 decimals coincide. The cubic root of 8271378 is about 202.2363830781.

It can be divided in two parts, 8271 and 378, that added together give a square (8649 = 93²).

The spelling of 8271378 in words is "eight million, two hundred seventy-one thousand, three hundred seventy-eight".