7243479917 has 2 divisors, whose sum is σ = 7243479918. Its totient is φ = 7243479916.

The previous prime is 7243479889. The next prime is 7243479977. The reversal of 7243479917 is 7199743427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7074323881 + 169156036 = 84109^2 + 13006^2 .

It is a cyclic number.

It is not a de Polignac number, because 7243479917 - 2¹⁴ = 7243463533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7243479977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3621739958 + 3621739959.

It is an arithmetic number, because the mean of its divisors is an integer number (3621739959).

Almost surely, 2^7243479917 is an apocalyptic number.

It is an amenable number.

7243479917 is a deficient number, since it is larger than the sum of its proper divisors (1).

7243479917 is an equidigital number, since it uses as much as digits as its factorization.

7243479917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2667168, while the sum is 53.

The square root of 7243479917 is about 85108.6359719153. The cubic root of 7243479917 is about 1934.8579523464.

The spelling of 7243479917 in words is "seven billion, two hundred forty-three million, four hundred seventy-nine thousand, nine hundred seventeen".