378911 has 4 divisors (see below), whose sum is σ = 408072. Its totient is φ = 349752.

The previous prime is 378901. The next prime is 378919. The reversal of 378911 is 119873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119873 = 13 ⋅9221.

It is not a de Polignac number, because 378911 - 2¹⁰ = 377887 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 (378919) 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, 14561 + ... + 14586.

It is an arithmetic number, because the mean of its divisors is an integer number (102018).

2³⁷⁸⁹¹¹ is an apocalyptic number.

378911 is a deficient number, since it is larger than the sum of its proper divisors (29161).

378911 is a wasteful number, since it uses less digits than its factorization.

378911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29160.

The product of its digits is 1512, while the sum is 29.

The square root of 378911 is about 615.5574709156. The cubic root of 378911 is about 72.3623070282.

The spelling of 378911 in words is "three hundred seventy-eight thousand, nine hundred eleven".