378692647 has 2 divisors, whose sum is σ = 378692648. Its totient is φ = 378692646.

The previous prime is 378692627. The next prime is 378692651. The reversal of 378692647 is 746296873.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378692647 - 2⁷ = 378692519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378692594 and 378692603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378692617) 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, 189346323 + 189346324.

It is an arithmetic number, because the mean of its divisors is an integer number (189346324).

Almost surely, 2^378692647 is an apocalyptic number.

378692647 is a deficient number, since it is larger than the sum of its proper divisors (1).

378692647 is an equidigital number, since it uses as much as digits as its factorization.

378692647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 52.

The square root of 378692647 is about 19460.0269013175. The cubic root of 378692647 is about 723.4840441176.

The spelling of 378692647 in words is "three hundred seventy-eight million, six hundred ninety-two thousand, six hundred forty-seven".