864378 has 16 divisors (see below), whose sum is σ = 1920960. Its totient is φ = 288108.
The previous prime is 864361. The next prime is 864379. The reversal of 864378 is 873468.
864378 is a `hidden beast` number, since 8 + 643 + 7 + 8 = 666.
864378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a d-powerful number, because it can be written as 8 + 65 + 33 + 44 + 77 + 85 .
It is not an unprimeable number, because it can be changed into a prime (864379) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7950 + ... + 8057.
It is an arithmetic number, because the mean of its divisors is an integer number (120060).
2864378 is an apocalyptic number.
864378 is an abundant number, since it is smaller than the sum of its proper divisors (1056582).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
864378 is a wasteful number, since it uses less digits than its factorization.
864378 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16018 (or 16012 counting only the distinct ones).
The product of its digits is 32256, while the sum is 36.
The square root of 864378 is about 929.7193124809. The cubic root of 864378 is about 95.2579508522.
The spelling of 864378 in words is "eight hundred sixty-four thousand, three hundred seventy-eight".
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