846381 has 4 divisors (see below), whose sum is σ = 1128512. Its totient is φ = 564252.

The previous prime is 846361. The next prime is 846383. The reversal of 846381 is 183648.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 846381 - 2¹⁰ = 845357 is a prime.

It is a super-2 number, since 2×846381² = 1432721594322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (846383) 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 3 ways as a sum of consecutive naturals, for example, 141061 + ... + 141066.

It is an arithmetic number, because the mean of its divisors is an integer number (282128).

2⁸⁴⁶³⁸¹ is an apocalyptic number.

It is an amenable number.

846381 is a deficient number, since it is larger than the sum of its proper divisors (282131).

846381 is a wasteful number, since it uses less digits than its factorization.

846381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282130.

The product of its digits is 4608, while the sum is 30.

The square root of 846381 is about 919.9896738551. The cubic root of 846381 is about 94.5921946756.

The spelling of 846381 in words is "eight hundred forty-six thousand, three hundred eighty-one".