8688042 has 36 divisors (see below), whose sum is σ = 20696130. Its totient is φ = 2632080.

The previous prime is 8688013. The next prime is 8688059. The reversal of 8688042 is 2408868.

It can be written as a sum of positive squares in only one way, i.e., 7502121 + 1185921 = 2739^2 + 1089^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8687988 and 8688006.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 184 + ... + 4172.

Almost surely, 2^8688042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8688042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10348065).

8688042 is an abundant number, since it is smaller than the sum of its proper divisors (12008088).

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

8688042 is a wasteful number, since it uses less digits than its factorization.

8688042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4019 (or 4005 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 8688042 is about 2947.5484728839. The cubic root of 8688042 is about 205.5767379951.

The spelling of 8688042 in words is "eight million, six hundred eighty-eight thousand, forty-two".