378045671 has 2 divisors, whose sum is σ = 378045672. Its totient is φ = 378045670.

The previous prime is 378045649. The next prime is 378045719. The reversal of 378045671 is 176540873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378045671 - 2⁶ = 378045607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378044671) 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, 189022835 + 189022836.

It is an arithmetic number, because the mean of its divisors is an integer number (189022836).

Almost surely, 2^378045671 is an apocalyptic number.

378045671 is a deficient number, since it is larger than the sum of its proper divisors (1).

378045671 is an equidigital number, since it uses as much as digits as its factorization.

378045671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 378045671 is about 19443.3965911309. The cubic root of 378045671 is about 723.0717980818.

The spelling of 378045671 in words is "three hundred seventy-eight million, forty-five thousand, six hundred seventy-one".