378814379 has 2 divisors, whose sum is σ = 378814380. Its totient is φ = 378814378.

The previous prime is 378814363. The next prime is 378814409. The reversal of 378814379 is 973418873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378814379 - 2⁴ = 378814363 is a prime.

It is not a weakly prime, because it can be changed into another prime (378814309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189407189 + 189407190.

It is an arithmetic number, because the mean of its divisors is an integer number (189407190).

Almost surely, 2^378814379 is an apocalyptic number.

378814379 is a deficient number, since it is larger than the sum of its proper divisors (1).

378814379 is an equidigital number, since it uses as much as digits as its factorization.

378814379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 50.

The square root of 378814379 is about 19463.1543949073. The cubic root of 378814379 is about 723.5615579230.

The spelling of 378814379 in words is "three hundred seventy-eight million, eight hundred fourteen thousand, three hundred seventy-nine".