8689992 has 96 divisors (see below), whose sum is σ = 24688800. Its totient is φ = 2539008.

The previous prime is 8689987. The next prime is 8689997. The reversal of 8689992 is 2999868.

8689992 is nontrivially palindromic in base 16.

It is an interprime number because it is at equal distance from previous prime (8689987) and next prime (8689997).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (8689997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147259 + ... + 147317.

It is an arithmetic number, because the mean of its divisors is an integer number (257175).

Almost surely, 2^8689992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8689992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12344400).

8689992 is an abundant number, since it is smaller than the sum of its proper divisors (15998808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8689992 is a wasteful number, since it uses less digits than its factorization.

8689992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 100 counting only the distinct ones).

The product of its digits is 559872, while the sum is 51.

The square root of 8689992 is about 2947.8792376894. The cubic root of 8689992 is about 205.5921171661.

The spelling of 8689992 in words is "eight million, six hundred eighty-nine thousand, nine hundred ninety-two".