785343653 has 2 divisors, whose sum is σ = 785343654. Its totient is φ = 785343652.

The previous prime is 785343623. The next prime is 785343683. The reversal of 785343653 is 356343587.

It is a balanced prime because it is at equal distance from previous prime (785343623) and next prime (785343683).

It can be written as a sum of positive squares in only one way, i.e., 644042884 + 141300769 = 25378^2 + 11887^2 .

It is a cyclic number.

It is not a de Polignac number, because 785343653 - 2¹² = 785339557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (785343623) 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, 392671826 + 392671827.

It is an arithmetic number, because the mean of its divisors is an integer number (392671827).

Almost surely, 2^785343653 is an apocalyptic number.

It is an amenable number.

785343653 is a deficient number, since it is larger than the sum of its proper divisors (1).

785343653 is an equidigital number, since it uses as much as digits as its factorization.

785343653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 44.

The square root of 785343653 is about 28023.9835319678. The cubic root of 785343653 is about 922.6137287292.

The spelling of 785343653 in words is "seven hundred eighty-five million, three hundred forty-three thousand, six hundred fifty-three".