8997769057 has 2 divisors, whose sum is σ = 8997769058. Its totient is φ = 8997769056.

The previous prime is 8997769037. The next prime is 8997769091. The reversal of 8997769057 is 7509677998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7750337296 + 1247431761 = 88036^2 + 35319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8997769057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8997768983 and 8997769001.

It is not a weakly prime, because it can be changed into another prime (8997769037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4498884528 + 4498884529.

It is an arithmetic number, because the mean of its divisors is an integer number (4498884529).

Almost surely, 2^8997769057 is an apocalyptic number.

It is an amenable number.

8997769057 is a deficient number, since it is larger than the sum of its proper divisors (1).

8997769057 is an equidigital number, since it uses as much as digits as its factorization.

8997769057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60011280, while the sum is 67.

The square root of 8997769057 is about 94856.5709742873. The cubic root of 8997769057 is about 2079.9119366840.

The spelling of 8997769057 in words is "eight billion, nine hundred ninety-seven million, seven hundred sixty-nine thousand, fifty-seven".