846042229 has 2 divisors, whose sum is σ = 846042230. Its totient is φ = 846042228.

The previous prime is 846042221. The next prime is 846042271. The reversal of 846042229 is 922240648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 663062500 + 182979729 = 25750^2 + 13527^2 .

It is a cyclic number.

It is not a de Polignac number, because 846042229 - 2³ = 846042221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (846042221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423021114 + 423021115.

It is an arithmetic number, because the mean of its divisors is an integer number (423021115).

Almost surely, 2^846042229 is an apocalyptic number.

It is an amenable number.

846042229 is a deficient number, since it is larger than the sum of its proper divisors (1).

846042229 is an equidigital number, since it uses as much as digits as its factorization.

846042229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 846042229 is about 29086.8050669028. The cubic root of 846042229 is about 945.7957255520.

The spelling of 846042229 in words is "eight hundred forty-six million, forty-two thousand, two hundred twenty-nine".