378899 has 4 divisors (see below), whose sum is σ = 380136. Its totient is φ = 377664.

The previous prime is 378893. The next prime is 378901. The reversal of 378899 is 998873.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 998873 = 631 ⋅1583.

It is a cyclic number.

It is not a de Polignac number, because 378899 - 2⁴ = 378883 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378899.

It is not an unprimeable number, because it can be changed into a prime (378893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227 + ... + 899.

It is an arithmetic number, because the mean of its divisors is an integer number (95034).

2³⁷⁸⁸⁹⁹ is an apocalyptic number.

378899 is a deficient number, since it is larger than the sum of its proper divisors (1237).

378899 is an equidigital number, since it uses as much as digits as its factorization.

378899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236.

The product of its digits is 108864, while the sum is 44.

The square root of 378899 is about 615.5477235763. The cubic root of 378899 is about 72.3615431225.

The spelling of 378899 in words is "three hundred seventy-eight thousand, eight hundred ninety-nine".