846389 has 2 divisors, whose sum is σ = 846390. Its totient is φ = 846388.

The previous prime is 846383. The next prime is 846397. The reversal of 846389 is 983648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 792100 + 54289 = 890^2 + 233^2 .

It is a cyclic number.

It is not a de Polignac number, because 846389 - 2¹² = 842293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another 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 as a sum of consecutive naturals, namely, 423194 + 423195.

It is an arithmetic number, because the mean of its divisors is an integer number (423195).

2⁸⁴⁶³⁸⁹ is an apocalyptic number.

It is an amenable number.

846389 is a deficient number, since it is larger than the sum of its proper divisors (1).

846389 is an equidigital number, since it uses as much as digits as its factorization.

846389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 846389 is about 919.9940217197. The cubic root of 846389 is about 94.5924927034.

The spelling of 846389 in words is "eight hundred forty-six thousand, three hundred eighty-nine".