378117 has 6 divisors (see below), whose sum is σ = 546182. Its totient is φ = 252072.

The previous prime is 378101. The next prime is 378127. The reversal of 378117 is 711873.

It can be written as a sum of positive squares in only one way, i.e., 352836 + 25281 = 594^2 + 159^2 .

It is not a de Polignac number, because 378117 - 2⁴ = 378101 is a prime.

It is an Ulam 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 (378127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20998 + ... + 21015.

2³⁷⁸¹¹⁷ is an apocalyptic number.

It is an amenable number.

378117 is a deficient number, since it is larger than the sum of its proper divisors (168065).

378117 is a wasteful number, since it uses less digits than its factorization.

378117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42019 (or 42016 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 378117 is about 614.9121888530. The cubic root of 378117 is about 72.3117271199.

The spelling of 378117 in words is "three hundred seventy-eight thousand, one hundred seventeen".