807696665 has 8 divisors (see below), whose sum is σ = 973099008. Its totient is φ = 643582000.

The previous prime is 807696641. The next prime is 807696677. The reversal of 807696665 is 566696708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 807696665 - 2¹⁴ = 807680281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320537 + ... + 323046.

It is an arithmetic number, because the mean of its divisors is an integer number (121637376).

Almost surely, 2^807696665 is an apocalyptic number.

It is an amenable number.

807696665 is a deficient number, since it is larger than the sum of its proper divisors (165402343).

807696665 is a wasteful number, since it uses less digits than its factorization.

807696665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643839.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The square root of 807696665 is about 28420.0046622093. The cubic root of 807696665 is about 931.2853330137.

The spelling of 807696665 in words is "eight hundred seven million, six hundred ninety-six thousand, six hundred sixty-five".