846790657 has 2 divisors, whose sum is σ = 846790658. Its totient is φ = 846790656.

The previous prime is 846790643. The next prime is 846790709. The reversal of 846790657 is 756097648.

It is a happy number.

It is an a-pointer prime, because the next prime (846790709) can be obtained adding 846790657 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 813162256 + 33628401 = 28516^2 + 5799^2 .

It is a cyclic number.

It is not a de Polignac number, because 846790657 - 2¹¹ = 846788609 is a prime.

It is not a weakly prime, because it can be changed into another prime (846790627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423395328 + 423395329.

It is an arithmetic number, because the mean of its divisors is an integer number (423395329).

It is a Proth number, since it is equal to 12921 ⋅ 2¹⁶ + 1 and 12921 < 2¹⁶.

Almost surely, 2^846790657 is an apocalyptic number.

It is an amenable number.

846790657 is a deficient number, since it is larger than the sum of its proper divisors (1).

846790657 is an equidigital number, since it uses as much as digits as its factorization.

846790657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The square root of 846790657 is about 29099.6676441502. The cubic root of 846790657 is about 946.0745340842.

The spelling of 846790657 in words is "eight hundred forty-six million, seven hundred ninety thousand, six hundred fifty-seven".