378878 has 4 divisors (see below), whose sum is σ = 568320. Its totient is φ = 189438.

The previous prime is 378869. The next prime is 378883. The reversal of 378878 is 878873.

378878 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

378878 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94718 + ... + 94721.

It is an arithmetic number, because the mean of its divisors is an integer number (142080).

2³⁷⁸⁸⁷⁸ is an apocalyptic number.

378878 is a deficient number, since it is larger than the sum of its proper divisors (189442).

378878 is a wasteful number, since it uses less digits than its factorization.

378878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189441.

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

The square root of 378878 is about 615.5306653612. The cubic root of 378878 is about 72.3602062486.

The spelling of 378878 in words is "three hundred seventy-eight thousand, eight hundred seventy-eight".