378823 has 2 divisors, whose sum is σ = 378824. Its totient is φ = 378822.

The previous prime is 378821. The next prime is 378869. The reversal of 378823 is 328873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378823 - 2¹ = 378821 is a prime.

Together with 378821, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189411 + 189412.

It is an arithmetic number, because the mean of its divisors is an integer number (189412).

2³⁷⁸⁸²³ is an apocalyptic number.

378823 is a deficient number, since it is larger than the sum of its proper divisors (1).

378823 is an equidigital number, since it uses as much as digits as its factorization.

378823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 378823 is about 615.4859868429. The cubic root of 378823 is about 72.3567046783.

The spelling of 378823 in words is "three hundred seventy-eight thousand, eight hundred twenty-three".