378739 has 2 divisors, whose sum is σ = 378740. Its totient is φ = 378738.

The previous prime is 378733. The next prime is 378757. The reversal of 378739 is 937873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378739 - 2¹³ = 370547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378698 and 378707.

It is not a weakly prime, because it can be changed into another prime (378733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189369 + 189370.

It is an arithmetic number, because the mean of its divisors is an integer number (189370).

2³⁷⁸⁷³⁹ is an apocalyptic number.

378739 is a deficient number, since it is larger than the sum of its proper divisors (1).

378739 is an equidigital number, since it uses as much as digits as its factorization.

378739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 37.

The square root of 378739 is about 615.4177443006. The cubic root of 378739 is about 72.3513561712.

The spelling of 378739 in words is "three hundred seventy-eight thousand, seven hundred thirty-nine".