378383873 has 4 divisors (see below), whose sum is σ = 432438720. Its totient is φ = 324329028.

The previous prime is 378383869. The next prime is 378383881.

It is a happy number.

378383873 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 378383873 - 2² = 378383869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378383813) 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 3 ways as a sum of consecutive naturals, for example, 27027413 + ... + 27027426.

It is an arithmetic number, because the mean of its divisors is an integer number (108109680).

Almost surely, 2^378383873 is an apocalyptic number.

It is an amenable number.

378383873 is a deficient number, since it is larger than the sum of its proper divisors (54054847).

378383873 is an equidigital number, since it uses as much as digits as its factorization.

378383873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54054846.

The product of its digits is 2032128, while the sum is 50.

The square root of 378383873 is about 19452.0917384224. The cubic root of 378383873 is about 723.2873553188.

The spelling of 378383873 in words is "three hundred seventy-eight million, three hundred eighty-three thousand, eight hundred seventy-three".