8887668497 has 2 divisors, whose sum is σ = 8887668498. Its totient is φ = 8887668496.

The previous prime is 8887668481. The next prime is 8887668529. The reversal of 8887668497 is 7948667888.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8177765761 + 709902736 = 90431^2 + 26644^2 .

It is a cyclic number.

It is not a de Polignac number, because 8887668497 - 2⁴ = 8887668481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8887668497.

It is not a weakly prime, because it can be changed into another prime (8887668467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4443834248 + 4443834249.

It is an arithmetic number, because the mean of its divisors is an integer number (4443834249).

Almost surely, 2^8887668497 is an apocalyptic number.

It is an amenable number.

8887668497 is a deficient number, since it is larger than the sum of its proper divisors (1).

8887668497 is an equidigital number, since it uses as much as digits as its factorization.

8887668497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 260112384, while the sum is 71.

The square root of 8887668497 is about 94274.4318306931. The cubic root of 8887668497 is about 2071.3935319300.

The spelling of 8887668497 in words is "eight billion, eight hundred eighty-seven million, six hundred sixty-eight thousand, four hundred ninety-seven".