683213653 has 2 divisors, whose sum is σ = 683213654. Its totient is φ = 683213652.

The previous prime is 683213623. The next prime is 683213669. The reversal of 683213653 is 356312386.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 587917009 + 95296644 = 24247^2 + 9762^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-683213653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (683213623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341606826 + 341606827.

It is an arithmetic number, because the mean of its divisors is an integer number (341606827).

Almost surely, 2^683213653 is an apocalyptic number.

It is an amenable number.

683213653 is a deficient number, since it is larger than the sum of its proper divisors (1).

683213653 is an equidigital number, since it uses as much as digits as its factorization.

683213653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 37.

The square root of 683213653 is about 26138.3559735497. The cubic root of 683213653 is about 880.7490407094.

The spelling of 683213653 in words is "six hundred eighty-three million, two hundred thirteen thousand, six hundred fifty-three".