378862313 has 2 divisors, whose sum is σ = 378862314. Its totient is φ = 378862312.

The previous prime is 378862307. The next prime is 378862373. The reversal of 378862313 is 313268873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 367220569 + 11641744 = 19163^2 + 3412^2 .

It is a cyclic number.

It is not a de Polignac number, because 378862313 - 2⁶ = 378862249 is a prime.

It is not a weakly prime, because it can be changed into another prime (378862373) 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, 189431156 + 189431157.

It is an arithmetic number, because the mean of its divisors is an integer number (189431157).

Almost surely, 2^378862313 is an apocalyptic number.

It is an amenable number.

378862313 is a deficient number, since it is larger than the sum of its proper divisors (1).

378862313 is an equidigital number, since it uses as much as digits as its factorization.

378862313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 378862313 is about 19464.3857596380. The cubic root of 378862313 is about 723.5920757165.

The spelling of 378862313 in words is "three hundred seventy-eight million, eight hundred sixty-two thousand, three hundred thirteen".