378889 has 8 divisors (see below), whose sum is σ = 437760. Its totient is φ = 321216.

The previous prime is 378883. The next prime is 378893. The reversal of 378889 is 988873.

It is a happy number.

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

It is not a de Polignac number, because 378889 - 2⁷ = 378761 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552 + ... + 1030.

It is an arithmetic number, because the mean of its divisors is an integer number (54720).

2³⁷⁸⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

378889 is a deficient number, since it is larger than the sum of its proper divisors (58871).

378889 is a wasteful number, since it uses less digits than its factorization.

378889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599.

The product of its digits is 96768, while the sum is 43.

The square root of 378889 is about 615.5396006757. The cubic root of 378889 is about 72.3609065220.

The spelling of 378889 in words is "three hundred seventy-eight thousand, eight hundred eighty-nine".