846930845 has 4 divisors (see below), whose sum is σ = 1016317020. Its totient is φ = 677544672.

The previous prime is 846930841. The next prime is 846930859. The reversal of 846930845 is 548039648.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 190495204 + 656435641 = 13802^2 + 25621^2 .

It is a cyclic number.

It is not a de Polignac number, because 846930845 - 2² = 846930841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 846930845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (846930841) 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 in 3 ways as a sum of consecutive naturals, for example, 84693080 + ... + 84693089.

It is an arithmetic number, because the mean of its divisors is an integer number (254079255).

Almost surely, 2^846930845 is an apocalyptic number.

It is an amenable number.

846930845 is a deficient number, since it is larger than the sum of its proper divisors (169386175).

846930845 is a wasteful number, since it uses less digits than its factorization.

846930845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169386174.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 846930845 is about 29102.0763004979. The cubic root of 846930845 is about 946.1267394227.

The spelling of 846930845 in words is "eight hundred forty-six million, nine hundred thirty thousand, eight hundred forty-five".