8729884 has 12 divisors (see below), whose sum is σ = 15650208. Its totient is φ = 4258400.

The previous prime is 8729881. The next prime is 8729887. The reversal of 8729884 is 4889278.

It is an interprime number because it is at equal distance from previous prime (8729881) and next prime (8729887).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8729881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26452 + ... + 26779.

It is an arithmetic number, because the mean of its divisors is an integer number (1304184).

Almost surely, 2^8729884 is an apocalyptic number.

It is an amenable number.

8729884 is a deficient number, since it is larger than the sum of its proper divisors (6920324).

8729884 is a wasteful number, since it uses less digits than its factorization.

8729884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53276 (or 53274 counting only the distinct ones).

The product of its digits is 258048, while the sum is 46.

The square root of 8729884 is about 2954.6377104478. The cubic root of 8729884 is about 205.9062318714.

Subtracting from 8729884 its reverse (4889278), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 8729884 in words is "eight million, seven hundred twenty-nine thousand, eight hundred eighty-four".