378971 has 4 divisors (see below), whose sum is σ = 395472. Its totient is φ = 362472.

The previous prime is 378967. The next prime is 378977. The reversal of 378971 is 179873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179873 = 19 ⋅9467.

It is a cyclic number.

It is not a de Polignac number, because 378971 - 2² = 378967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378977) 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, 8216 + ... + 8261.

It is an arithmetic number, because the mean of its divisors is an integer number (98868).

2³⁷⁸⁹⁷¹ is an apocalyptic number.

378971 is a deficient number, since it is larger than the sum of its proper divisors (16501).

378971 is a wasteful number, since it uses less digits than its factorization.

378971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16500.

The product of its digits is 10584, while the sum is 35.

The square root of 378971 is about 615.6062052969. The cubic root of 378971 is about 72.3661263149.

The spelling of 378971 in words is "three hundred seventy-eight thousand, nine hundred seventy-one".