846340069 has 2 divisors, whose sum is σ = 846340070. Its totient is φ = 846340068.

The previous prime is 846340067. The next prime is 846340091. The reversal of 846340069 is 960043648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 792141025 + 54199044 = 28145^2 + 7362^2 .

It is a cyclic number.

It is not a de Polignac number, because 846340069 - 2¹ = 846340067 is a prime.

It is a super-2 number, since 2×846340069² = 1432583024789849522, which contains 22 as substring.

Together with 846340067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (846340067) 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, 423170034 + 423170035.

It is an arithmetic number, because the mean of its divisors is an integer number (423170035).

Almost surely, 2^846340069 is an apocalyptic number.

It is an amenable number.

846340069 is a deficient number, since it is larger than the sum of its proper divisors (1).

846340069 is an equidigital number, since it uses as much as digits as its factorization.

846340069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 846340069 is about 29091.9244636720. The cubic root of 846340069 is about 945.9066982433.

The spelling of 846340069 in words is "eight hundred forty-six million, three hundred forty thousand, sixty-nine".