378287 has 8 divisors (see below), whose sum is σ = 465696. Its totient is φ = 299232.

The previous prime is 378283. The next prime is 378289. The reversal of 378287 is 782873.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 378287 - 2² = 378283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1988 + ... + 2169.

It is an arithmetic number, because the mean of its divisors is an integer number (58212).

2³⁷⁸²⁸⁷ is an apocalyptic number.

378287 is a deficient number, since it is larger than the sum of its proper divisors (87409).

378287 is a wasteful number, since it uses less digits than its factorization.

378287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4177.

The product of its digits is 18816, while the sum is 35.

The square root of 378287 is about 615.0504044385. The cubic root of 378287 is about 72.3225625242.

The spelling of 378287 in words is "three hundred seventy-eight thousand, two hundred eighty-seven".