378889707 has 24 divisors (see below), whose sum is σ = 589896192. Its totient is φ = 215686800.

The previous prime is 378889691. The next prime is 378889729. The reversal of 378889707 is 707988873.

It is not a de Polignac number, because 378889707 - 2⁴ = 378889691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378889747) 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 23 ways as a sum of consecutive naturals, for example, 35082 + ... + 44592.

It is an arithmetic number, because the mean of its divisors is an integer number (24579008).

Almost surely, 2^378889707 is an apocalyptic number.

378889707 is a deficient number, since it is larger than the sum of its proper divisors (211006485).

378889707 is a wasteful number, since it uses less digits than its factorization.

378889707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9799 (or 9792 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 57.

The square root of 378889707 is about 19465.0894423838. The cubic root of 378889707 is about 723.6095153006.

The spelling of 378889707 in words is "three hundred seventy-eight million, eight hundred eighty-nine thousand, seven hundred seven".