378336667 has 2 divisors, whose sum is σ = 378336668. Its totient is φ = 378336666.

The previous prime is 378336593. The next prime is 378336689. The reversal of 378336667 is 766633873.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378336667 - 2²⁷ = 244118939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378336667.

It is not a weakly prime, because it can be changed into another prime (378336467) 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, 189168333 + 189168334.

It is an arithmetic number, because the mean of its divisors is an integer number (189168334).

Almost surely, 2^378336667 is an apocalyptic number.

378336667 is a deficient number, since it is larger than the sum of its proper divisors (1).

378336667 is an equidigital number, since it uses as much as digits as its factorization.

378336667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 49.

The square root of 378336667 is about 19450.8783092178. The cubic root of 378336667 is about 723.2572757045.

The spelling of 378336667 in words is "three hundred seventy-eight million, three hundred thirty-six thousand, six hundred sixty-seven".