378382987 has 2 divisors, whose sum is σ = 378382988. Its totient is φ = 378382986.

The previous prime is 378382943. The next prime is 378382997. The reversal of 378382987 is 789283873.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378382987 - 2⁷ = 378382859 is a prime.

It is not a weakly prime, because it can be changed into another prime (378382997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189191493 + 189191494.

It is an arithmetic number, because the mean of its divisors is an integer number (189191494).

Almost surely, 2^378382987 is an apocalyptic number.

378382987 is a deficient number, since it is larger than the sum of its proper divisors (1).

378382987 is an equidigital number, since it uses as much as digits as its factorization.

378382987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 55.

The square root of 378382987 is about 19452.0689645086. The cubic root of 378382987 is about 723.2867907835.

The spelling of 378382987 in words is "three hundred seventy-eight million, three hundred eighty-two thousand, nine hundred eighty-seven".