8774897665 has 16 divisors (see below), whose sum is σ = 10916246016. Its totient is φ = 6764284800.

The previous prime is 8774897639. The next prime is 8774897669. The reversal of 8774897665 is 5667984778.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-8774897665 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8774897665.

It is not an unprimeable number, because it can be changed into a prime (8774897669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85371 + ... + 157600.

It is an arithmetic number, because the mean of its divisors is an integer number (682265376).

Almost surely, 2^8774897665 is an apocalyptic number.

It is an amenable number.

8774897665 is a deficient number, since it is larger than the sum of its proper divisors (2141348351).

8774897665 is a wasteful number, since it uses less digits than its factorization.

8774897665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243240.

The product of its digits is 142248960, while the sum is 67.

The square root of 8774897665 is about 93674.4237505628. The cubic root of 8774897665 is about 2062.5952824790.

The spelling of 8774897665 in words is "eight billion, seven hundred seventy-four million, eight hundred ninety-seven thousand, six hundred sixty-five".