378943 has 8 divisors (see below), whose sum is σ = 399600. Its totient is φ = 358848.

The previous prime is 378941. The next prime is 378949. The reversal of 378943 is 349873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 378943 - 2¹ = 378941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378899 and 378908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2028 + ... + 2206.

It is an arithmetic number, because the mean of its divisors is an integer number (49950).

2³⁷⁸⁹⁴³ is an apocalyptic number.

378943 is a deficient number, since it is larger than the sum of its proper divisors (20657).

378943 is a wasteful number, since it uses less digits than its factorization.

378943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281.

The product of its digits is 18144, while the sum is 34.

The square root of 378943 is about 615.5834630657. The cubic root of 378943 is about 72.3643440313.

It can be divided in two parts, 37 and 8943, that multiplied together give a triangular number (330891 = T₈₁₃).

The spelling of 378943 in words is "three hundred seventy-eight thousand, nine hundred forty-three".