378678323 has 2 divisors, whose sum is σ = 378678324. Its totient is φ = 378678322.

The previous prime is 378678283. The next prime is 378678329. The reversal of 378678323 is 323876873.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378678323 - 2⁸ = 378678067 is a prime.

It is not a weakly prime, because it can be changed into another prime (378678329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189339161 + 189339162.

It is an arithmetic number, because the mean of its divisors is an integer number (189339162).

Almost surely, 2^378678323 is an apocalyptic number.

378678323 is a deficient number, since it is larger than the sum of its proper divisors (1).

378678323 is an equidigital number, since it uses as much as digits as its factorization.

378678323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 47.

The square root of 378678323 is about 19459.6588613470. The cubic root of 378678323 is about 723.4749221061.

The spelling of 378678323 in words is "three hundred seventy-eight million, six hundred seventy-eight thousand, three hundred twenty-three".