846229 has 2 divisors, whose sum is σ = 846230. Its totient is φ = 846228.

The previous prime is 846217. The next prime is 846233. The reversal of 846229 is 922648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 762129 + 84100 = 873^2 + 290^2 .

It is a cyclic number.

It is not a de Polignac number, because 846229 - 2⁹ = 845717 is a prime.

It is a super-2 number, since 2×846229² = 1432207040882, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8⁵ + 4 + 2⁵ + 6⁷ + 2¹¹ + 9⁶ .

846229 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 846229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (846259) 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, 423114 + 423115.

It is an arithmetic number, because the mean of its divisors is an integer number (423115).

2⁸⁴⁶²²⁹ is an apocalyptic number.

It is an amenable number.

846229 is a deficient number, since it is larger than the sum of its proper divisors (1).

846229 is an equidigital number, since it uses as much as digits as its factorization.

846229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 846229 is about 919.9070605230. The cubic root of 846229 is about 94.5865317908.

The spelling of 846229 in words is "eight hundred forty-six thousand, two hundred twenty-nine".