8865396497 has 2 divisors, whose sum is σ = 8865396498. Its totient is φ = 8865396496.

The previous prime is 8865396481. The next prime is 8865396557. The reversal of 8865396497 is 7946935688.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8143077121 + 722319376 = 90239^2 + 26876^2 .

It is a cyclic number.

It is not a de Polignac number, because 8865396497 - 2⁴ = 8865396481 is a prime.

It is not a weakly prime, because it can be changed into another prime (8865396457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4432698248 + 4432698249.

It is an arithmetic number, because the mean of its divisors is an integer number (4432698249).

Almost surely, 2^8865396497 is an apocalyptic number.

It is an amenable number.

8865396497 is a deficient number, since it is larger than the sum of its proper divisors (1).

8865396497 is an equidigital number, since it uses as much as digits as its factorization.

8865396497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78382080, while the sum is 65.

The square root of 8865396497 is about 94156.2345094577. The cubic root of 8865396497 is about 2069.6618191653.

The spelling of 8865396497 in words is "eight billion, eight hundred sixty-five million, three hundred ninety-six thousand, four hundred ninety-seven".