846106991 has 2 divisors, whose sum is σ = 846106992. Its totient is φ = 846106990.

The previous prime is 846106981. The next prime is 846107033. The reversal of 846106991 is 199601648.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 846106991 - 2⁶ = 846106927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (846106981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423053495 + 423053496.

It is an arithmetic number, because the mean of its divisors is an integer number (423053496).

Almost surely, 2^846106991 is an apocalyptic number.

846106991 is a deficient number, since it is larger than the sum of its proper divisors (1).

846106991 is an equidigital number, since it uses as much as digits as its factorization.

846106991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 846106991 is about 29087.9182995277. The cubic root of 846106991 is about 945.8198575468.

The spelling of 846106991 in words is "eight hundred forty-six million, one hundred six thousand, nine hundred ninety-one".