378067667 has 4 divisors (see below), whose sum is σ = 383710536. Its totient is φ = 372424800.

The previous prime is 378067637. The next prime is 378067747. The reversal of 378067667 is 766760873.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 378067667 - 2¹⁰ = 378066643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378067637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2821334 + ... + 2821467.

It is an arithmetic number, because the mean of its divisors is an integer number (95927634).

Almost surely, 2^378067667 is an apocalyptic number.

378067667 is a deficient number, since it is larger than the sum of its proper divisors (5642869).

378067667 is an equidigital number, since it uses as much as digits as its factorization.

378067667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5642868.

The product of its (nonzero) digits is 1778112, while the sum is 50.

The square root of 378067667 is about 19443.9622248142. The cubic root of 378067667 is about 723.0858214129.

The spelling of 378067667 in words is "three hundred seventy-eight million, sixty-seven thousand, six hundred sixty-seven".