378805 has 16 divisors (see below), whose sum is σ = 529920. Its totient is φ = 254592.

The previous prime is 378793. The next prime is 378809. The reversal of 378805 is 508873.

It is a cyclic number.

It is not a de Polignac number, because 378805 - 2¹¹ = 376757 is a prime.

378805 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2697 + ... + 2833.

It is an arithmetic number, because the mean of its divisors is an integer number (33120).

2³⁷⁸⁸⁰⁵ is an apocalyptic number.

378805 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

378805 is a deficient number, since it is larger than the sum of its proper divisors (151115).

378805 is a wasteful number, since it uses less digits than its factorization.

378805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228.

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

The square root of 378805 is about 615.4713640780. The cubic root of 378805 is about 72.3555586362.

The spelling of 378805 in words is "three hundred seventy-eight thousand, eight hundred five".