8529661 has 16 divisors (see below), whose sum is σ = 10088064. Its totient is φ = 7061184.

The previous prime is 8529659. The next prime is 8529673. The reversal of 8529661 is 1669258.

8529661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8529661 - 2¹ = 8529659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8529661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8529601) 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, 30655 + ... + 30931.

It is an arithmetic number, because the mean of its divisors is an integer number (630504).

Almost surely, 2^8529661 is an apocalyptic number.

It is an amenable number.

8529661 is a deficient number, since it is larger than the sum of its proper divisors (1558403).

8529661 is a wasteful number, since it uses less digits than its factorization.

8529661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420.

The product of its digits is 25920, while the sum is 37.

The square root of 8529661 is about 2920.5583370308. The cubic root of 8529661 is about 204.3198637689.

The spelling of 8529661 in words is "eight million, five hundred twenty-nine thousand, six hundred sixty-one".