8690828561 has 8 divisors (see below), whose sum is σ = 8848471200. Its totient is φ = 8533530720.

The previous prime is 8690828543. The next prime is 8690828569. The reversal of 8690828561 is 1658280968.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8690828561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8690828569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35060 + ... + 136421.

It is an arithmetic number, because the mean of its divisors is an integer number (1106058900).

Almost surely, 2^8690828561 is an apocalyptic number.

It is an amenable number.

8690828561 is a deficient number, since it is larger than the sum of its proper divisors (157642639).

8690828561 is a wasteful number, since it uses less digits than its factorization.

8690828561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172399.

The product of its (nonzero) digits is 1658880, while the sum is 53.

The square root of 8690828561 is about 93224.6134934332. The cubic root of 8690828561 is about 2055.9871421202.

The spelling of 8690828561 in words is "eight billion, six hundred ninety million, eight hundred twenty-eight thousand, five hundred sixty-one".