378607217 has 8 divisors (see below), whose sum is σ = 389257440. Its totient is φ = 368040960.

The previous prime is 378607211. The next prime is 378607237. The reversal of 378607217 is 712706873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378607217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378607211) 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 in 7 ways as a sum of consecutive naturals, for example, 11792 + ... + 29937.

It is an arithmetic number, because the mean of its divisors is an integer number (48657180).

Almost surely, 2^378607217 is an apocalyptic number.

It is an amenable number.

378607217 is a deficient number, since it is larger than the sum of its proper divisors (10650223).

378607217 is a wasteful number, since it uses less digits than its factorization.

378607217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41983.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 378607217 is about 19457.8317651274. The cubic root of 378607217 is about 723.4296359754.

The spelling of 378607217 in words is "three hundred seventy-eight million, six hundred seven thousand, two hundred seventeen".