378085 has 4 divisors (see below), whose sum is σ = 453708. Its totient is φ = 302464.

The previous prime is 378083. The next prime is 378089. The reversal of 378085 is 580873.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 116964 + 261121 = 342^2 + 511^2 .

It is a cyclic number.

It is not a de Polignac number, because 378085 - 2¹ = 378083 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378083) 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, 37804 + ... + 37813.

It is an arithmetic number, because the mean of its divisors is an integer number (113427).

2³⁷⁸⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

378085 is a deficient number, since it is larger than the sum of its proper divisors (75623).

378085 is an equidigital number, since it uses as much as digits as its factorization.

378085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75622.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 378085 is about 614.8861683271. The cubic root of 378085 is about 72.3096871511.

The spelling of 378085 in words is "three hundred seventy-eight thousand, eighty-five".