846620617 has 2 divisors, whose sum is σ = 846620618. Its totient is φ = 846620616.

The previous prime is 846620611. The next prime is 846620629. The reversal of 846620617 is 716026648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 809459401 + 37161216 = 28451^2 + 6096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-846620617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 846620617.

It is not a weakly prime, because it can be changed into another prime (846620611) 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, 423310308 + 423310309.

It is an arithmetic number, because the mean of its divisors is an integer number (423310309).

Almost surely, 2^846620617 is an apocalyptic number.

It is an amenable number.

846620617 is a deficient number, since it is larger than the sum of its proper divisors (1).

846620617 is an equidigital number, since it uses as much as digits as its factorization.

846620617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 846620617 is about 29096.7458146096. The cubic root of 846620617 is about 946.0112042708.

The spelling of 846620617 in words is "eight hundred forty-six million, six hundred twenty thousand, six hundred seventeen".