378003 has 4 divisors (see below), whose sum is σ = 504008. Its totient is φ = 252000.

The previous prime is 377999. The next prime is 378011. The reversal of 378003 is 300873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300873 = 3 ⋅100291.

It is not a de Polignac number, because 378003 - 2² = 377999 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378003.

It is not an unprimeable number, because it can be changed into a prime (378023) 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, 62998 + ... + 63003.

It is an arithmetic number, because the mean of its divisors is an integer number (126002).

2³⁷⁸⁰⁰³ is an apocalyptic number.

378003 is a deficient number, since it is larger than the sum of its proper divisors (126005).

378003 is a wasteful number, since it uses less digits than its factorization.

378003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126004.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 378003 is about 614.8194857029. The cubic root of 378003 is about 72.3044592059.

Adding to 378003 its reverse (300873), we get a palindrome (678876).

The spelling of 378003 in words is "three hundred seventy-eight thousand, three".