378063839 has 2 divisors, whose sum is σ = 378063840. Its totient is φ = 378063838.

The previous prime is 378063821. The next prime is 378063841. The reversal of 378063839 is 938360873.

It is a strong prime.

It is an emirp because it is prime and its reverse (938360873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 378063839 - 2²⁰ = 377015263 is a prime.

It is a Sophie Germain prime.

Together with 378063841, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 378063793 and 378063802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378063859) 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, 189031919 + 189031920.

It is an arithmetic number, because the mean of its divisors is an integer number (189031920).

Almost surely, 2^378063839 is an apocalyptic number.

378063839 is a deficient number, since it is larger than the sum of its proper divisors (1).

378063839 is an equidigital number, since it uses as much as digits as its factorization.

378063839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 378063839 is about 19443.8637878381. The cubic root of 378063839 is about 723.0833809486.

The spelling of 378063839 in words is "three hundred seventy-eight million, sixty-three thousand, eight hundred thirty-nine".