378329867 has 4 divisors (see below), whose sum is σ = 387128280. Its totient is φ = 369531456.

The previous prime is 378329857. The next prime is 378329879. The reversal of 378329867 is 768923873.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768923873 = 9209 ⋅83497.

It is a cyclic number.

It is not a de Polignac number, because 378329867 - 2⁶ = 378329803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378329827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4399142 + ... + 4399227.

It is an arithmetic number, because the mean of its divisors is an integer number (96782070).

Almost surely, 2^378329867 is an apocalyptic number.

378329867 is a deficient number, since it is larger than the sum of its proper divisors (8798413).

378329867 is an equidigital number, since it uses as much as digits as its factorization.

378329867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8798412.

The product of its digits is 3048192, while the sum is 53.

The square root of 378329867 is about 19450.7035091279. The cubic root of 378329867 is about 723.2529425453.

The spelling of 378329867 in words is "three hundred seventy-eight million, three hundred twenty-nine thousand, eight hundred sixty-seven".