378787 has 8 divisors (see below), whose sum is σ = 405504. Its totient is φ = 352968.

The previous prime is 378779. The next prime is 378793. The reversal of 378787 is 787873.

378787 is nontrivially palindromic in base 15.

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 378787 - 2³ = 378779 is a prime.

It is a Duffinian number.

378787 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798 + ... + 1180.

It is an arithmetic number, because the mean of its divisors is an integer number (50688).

2³⁷⁸⁷⁸⁷ is an apocalyptic number.

378787 is a deficient number, since it is larger than the sum of its proper divisors (26717).

378787 is a wasteful number, since it uses less digits than its factorization.

378787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449.

The product of its digits is 65856, while the sum is 40.

The square root of 378787 is about 615.4567409656. The cubic root of 378787 is about 72.3544125578.

The spelling of 378787 in words is "three hundred seventy-eight thousand, seven hundred eighty-seven".