7220653493 has 2 divisors, whose sum is σ = 7220653494. Its totient is φ = 7220653492.

The previous prime is 7220653441. The next prime is 7220653523. The reversal of 7220653493 is 3943560227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6557436484 + 663217009 = 80978^2 + 25753^2 .

It is a cyclic number.

It is not a de Polignac number, because 7220653493 - 2³⁰ = 6146911669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7220653493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7220653093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3610326746 + 3610326747.

It is an arithmetic number, because the mean of its divisors is an integer number (3610326747).

Almost surely, 2^7220653493 is an apocalyptic number.

It is an amenable number.

7220653493 is a deficient number, since it is larger than the sum of its proper divisors (1).

7220653493 is an equidigital number, since it uses as much as digits as its factorization.

7220653493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 41.

The square root of 7220653493 is about 84974.4284652742. The cubic root of 7220653493 is about 1932.8233702894.

The spelling of 7220653493 in words is "seven billion, two hundred twenty million, six hundred fifty-three thousand, four hundred ninety-three".