7716229 has 2 divisors, whose sum is σ = 7716230. Its totient is φ = 7716228.

The previous prime is 7716199. The next prime is 7716271. The reversal of 7716229 is 9226177.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6240004 + 1476225 = 2498^2 + 1215^2 .

It is an emirp because it is prime and its reverse (9226177) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7716229 - 2¹³ = 7708037 is a prime.

7716229 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7716194 and 7716203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7716329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3858114 + 3858115.

It is an arithmetic number, because the mean of its divisors is an integer number (3858115).

Almost surely, 2^7716229 is an apocalyptic number.

It is an amenable number.

7716229 is a deficient number, since it is larger than the sum of its proper divisors (1).

7716229 is an equidigital number, since it uses as much as digits as its factorization.

7716229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 34.

The square root of 7716229 is about 2777.8101087007. The cubic root of 7716229 is about 197.6067168817.

The spelling of 7716229 in words is "seven million, seven hundred sixteen thousand, two hundred twenty-nine".