8669999667 has 32 divisors (see below), whose sum is σ = 13290421248. Its totient is φ = 4924740096.

The previous prime is 8669999659. The next prime is 8669999669. The reversal of 8669999667 is 7669999668.

It is not a de Polignac number, because 8669999667 - 2³ = 8669999659 is a prime.

It is a super-2 number, since 2×8669999667² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8669999669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4025863 + ... + 4028015.

It is an arithmetic number, because the mean of its divisors is an integer number (415325664).

Almost surely, 2^8669999667 is an apocalyptic number.

8669999667 is a deficient number, since it is larger than the sum of its proper divisors (4620421581).

8669999667 is a wasteful number, since it uses less digits than its factorization.

8669999667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219.

The product of its digits is 476171136, while the sum is 75.

The square root of 8669999667 is about 93112.8329877252. The cubic root of 8669999667 is about 2054.3433327897.

Subtracting from 8669999667 its reverse (7669999668), we obtain a palindrome (999999999).

The spelling of 8669999667 in words is "eight billion, six hundred sixty-nine million, nine hundred ninety-nine thousand, six hundred sixty-seven".