379891 has 8 divisors (see below), whose sum is σ = 403200. Its totient is φ = 357192.

The previous prime is 379889. The next prime is 379903. The reversal of 379891 is 198973.

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 379891 - 2¹ = 379889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 379891.

It is not an unprimeable number, because it can be changed into a prime (379811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1810 + ... + 2008.

It is an arithmetic number, because the mean of its divisors is an integer number (50400).

2³⁷⁹⁸⁹¹ is an apocalyptic number.

379891 is a deficient number, since it is larger than the sum of its proper divisors (23309).

379891 is a wasteful number, since it uses less digits than its factorization.

379891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305.

The product of its digits is 13608, while the sum is 37.

The square root of 379891 is about 616.3529832815. The cubic root of 379891 is about 72.4246382980.

The spelling of 379891 in words is "three hundred seventy-nine thousand, eight hundred ninety-one".