7205081993 has 2 divisors, whose sum is σ = 7205081994. Its totient is φ = 7205081992.

The previous prime is 7205081971. The next prime is 7205082007. The reversal of 7205081993 is 3991805027.

7205081993 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6255702649 + 949379344 = 79093^2 + 30812^2 .

It is a cyclic number.

It is not a de Polignac number, because 7205081993 - 2¹² = 7205077897 is a prime.

It is not a weakly prime, because it can be changed into another prime (7205081963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3602540996 + 3602540997.

It is an arithmetic number, because the mean of its divisors is an integer number (3602540997).

Almost surely, 2^7205081993 is an apocalyptic number.

It is an amenable number.

7205081993 is a deficient number, since it is larger than the sum of its proper divisors (1).

7205081993 is an equidigital number, since it uses as much as digits as its factorization.

7205081993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 7205081993 is about 84882.7543909833. The cubic root of 7205081993 is about 1931.4329781309.

The spelling of 7205081993 in words is "seven billion, two hundred five million, eighty-one thousand, nine hundred ninety-three".