378574843 has 2 divisors, whose sum is σ = 378574844. Its totient is φ = 378574842.

The previous prime is 378574841. The next prime is 378574891. The reversal of 378574843 is 348475873.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378574843 - 2¹ = 378574841 is a prime.

Together with 378574841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (378574841) 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, 189287421 + 189287422.

It is an arithmetic number, because the mean of its divisors is an integer number (189287422).

Almost surely, 2^378574843 is an apocalyptic number.

378574843 is a deficient number, since it is larger than the sum of its proper divisors (1).

378574843 is an equidigital number, since it uses as much as digits as its factorization.

378574843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2257920, while the sum is 49.

The square root of 378574843 is about 19456.9998458138. Note that the first 3 decimals coincide. The cubic root of 378574843 is about 723.4090156794.

The spelling of 378574843 in words is "three hundred seventy-eight million, five hundred seventy-four thousand, eight hundred forty-three".