378666297 has 12 divisors (see below), whose sum is σ = 549557424. Its totient is φ = 251246520.

The previous prime is 378666293. The next prime is 378666329. The reversal of 378666297 is 792666873.

It is not a de Polignac number, because 378666297 - 2² = 378666293 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378666293) 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 in 11 ways as a sum of consecutive naturals, for example, 97803 + ... + 101600.

It is an arithmetic number, because the mean of its divisors is an integer number (45796452).

Almost surely, 2^378666297 is an apocalyptic number.

It is an amenable number.

378666297 is a deficient number, since it is larger than the sum of its proper divisors (170891127).

378666297 is a wasteful number, since it uses less digits than its factorization.

378666297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199620 (or 199617 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 378666297 is about 19459.3498606711. The cubic root of 378666297 is about 723.4672633616.

The spelling of 378666297 in words is "three hundred seventy-eight million, six hundred sixty-six thousand, two hundred ninety-seven".