8695661 has 8 divisors (see below), whose sum is σ = 9478560. Its totient is φ = 7929072.

The previous prime is 8695651. The next prime is 8695663. The reversal of 8695661 is 1665968.

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

It is a cyclic number.

It is not a de Polignac number, because 8695661 - 2¹⁴ = 8679277 is a prime.

It is a super-2 number, since 2×8695661² = 151229040453842, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8 + 6 + 9⁷ + 5⁹ + 6⁷ + 6⁸ + 1 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8695663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2951 + ... + 5108.

It is an arithmetic number, because the mean of its divisors is an integer number (1184820).

Almost surely, 2^8695661 is an apocalyptic number.

It is an amenable number.

8695661 is a deficient number, since it is larger than the sum of its proper divisors (782899).

8695661 is a wasteful number, since it uses less digits than its factorization.

8695661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8155.

The product of its digits is 77760, while the sum is 41.

The square root of 8695661 is about 2948.8406196334. The cubic root of 8695661 is about 205.6368141141.

The spelling of 8695661 in words is "eight million, six hundred ninety-five thousand, six hundred sixty-one".