8663732 has 48 divisors (see below), whose sum is σ = 19740672. Its totient is φ = 3226080.

The previous prime is 8663719. The next prime is 8663741. The reversal of 8663732 is 2373668.

It is a super-3 number, since 3×8663732³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8663692 and 8663701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6473 + ... + 7695.

It is an arithmetic number, because the mean of its divisors is an integer number (411264).

Almost surely, 2^8663732 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 8663732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9870336).

8663732 is an abundant number, since it is smaller than the sum of its proper divisors (11076940).

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

8663732 is a wasteful number, since it uses less digits than its factorization.

8663732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268 (or 1266 counting only the distinct ones).

The product of its digits is 36288, while the sum is 35.

The square root of 8663732 is about 2943.4218182245. The cubic root of 8663732 is about 205.3848175374.

Subtracting from 8663732 its reverse (2373668), we obtain a square (6290064 = 2508²).

The spelling of 8663732 in words is "eight million, six hundred sixty-three thousand, seven hundred thirty-two".