378347 has 4 divisors (see below), whose sum is σ = 398280. Its totient is φ = 358416.

The previous prime is 378317. The next prime is 378353. The reversal of 378347 is 743873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 743873 = 13 ⋅57221.

It is not a de Polignac number, because 378347 - 2⁶ = 378283 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 (378317) 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, 9938 + ... + 9975.

It is an arithmetic number, because the mean of its divisors is an integer number (99570).

2³⁷⁸³⁴⁷ is an apocalyptic number.

378347 is a deficient number, since it is larger than the sum of its proper divisors (19933).

378347 is a wasteful number, since it uses less digits than its factorization.

378347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19932.

The product of its digits is 14112, while the sum is 32.

The square root of 378347 is about 615.0991789947. The cubic root of 378347 is about 72.3263860095.

The spelling of 378347 in words is "three hundred seventy-eight thousand, three hundred forty-seven".