378107715 has 16 divisors (see below), whose sum is σ = 617845248. Its totient is φ = 197366496.

The previous prime is 378107711. The next prime is 378107759. The reversal of 378107715 is 517701873.

It is not a de Polignac number, because 378107715 - 2² = 378107711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378107711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267457 + ... + 268866.

It is an arithmetic number, because the mean of its divisors is an integer number (38615328).

Almost surely, 2^378107715 is an apocalyptic number.

378107715 is a deficient number, since it is larger than the sum of its proper divisors (239737533).

378107715 is a wasteful number, since it uses less digits than its factorization.

378107715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536378.

The product of its (nonzero) digits is 41160, while the sum is 39.

The square root of 378107715 is about 19444.9920287975. The cubic root of 378107715 is about 723.1113522204. Note that the first 3 decimals are identical.

The spelling of 378107715 in words is "three hundred seventy-eight million, one hundred seven thousand, seven hundred fifteen".