378863 has 4 divisors (see below), whose sum is σ = 380760. Its totient is φ = 376968.

The previous prime is 378823. The next prime is 378869. The reversal of 378863 is 368873.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 378863 - 2¹⁸ = 116719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608 + ... + 1061.

It is an arithmetic number, because the mean of its divisors is an integer number (95190).

2³⁷⁸⁸⁶³ is an apocalyptic number.

378863 is a deficient number, since it is larger than the sum of its proper divisors (1897).

378863 is a wasteful number, since it uses less digits than its factorization.

378863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896.

The product of its digits is 24192, while the sum is 35.

The square root of 378863 is about 615.5184806324. The cubic root of 378863 is about 72.3592513085.

The spelling of 378863 in words is "three hundred seventy-eight thousand, eight hundred sixty-three".