8689459621 has 8 divisors (see below), whose sum is σ = 8772616224. Its totient is φ = 8606339280.

The previous prime is 8689459579. The next prime is 8689459627. The reversal of 8689459621 is 1269549868.

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-8689459621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8689459627) 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, 951286 + ... + 960376.

It is an arithmetic number, because the mean of its divisors is an integer number (1096577028).

Almost surely, 2^8689459621 is an apocalyptic number.

It is an amenable number.

8689459621 is a deficient number, since it is larger than the sum of its proper divisors (83156603).

8689459621 is a wasteful number, since it uses less digits than its factorization.

8689459621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18131.

The product of its digits is 7464960, while the sum is 58.

The square root of 8689459621 is about 93217.2710445870. The cubic root of 8689459621 is about 2055.8791865205.

The spelling of 8689459621 in words is "eight billion, six hundred eighty-nine million, four hundred fifty-nine thousand, six hundred twenty-one".