378005 has 16 divisors (see below), whose sum is σ = 501120. Its totient is φ = 272448.

The previous prime is 377999. The next prime is 378011. The reversal of 378005 is 500873.

It is an interprime number because it is at equal distance from previous prime (377999) and next prime (378011).

It is a cyclic number.

It is not a de Polignac number, because 378005 - 2⁸ = 377749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2099 + ... + 2271.

It is an arithmetic number, because the mean of its divisors is an integer number (31320).

2³⁷⁸⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

378005 is a deficient number, since it is larger than the sum of its proper divisors (123115).

378005 is a wasteful number, since it uses less digits than its factorization.

378005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 378005 is about 614.8211121944. The cubic root of 378005 is about 72.3045867257.

Adding to 378005 its reverse (500873), we get a palindrome (878878).

The spelling of 378005 in words is "three hundred seventy-eight thousand, five".