8729736 has 32 divisors (see below), whose sum is σ = 22239360. Its totient is φ = 2854592.

The previous prime is 8729729. The next prime is 8729767. The reversal of 8729736 is 6379278.

It is an Ulam number.

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2160 + ... + 4703.

It is an arithmetic number, because the mean of its divisors is an integer number (694980).

Almost surely, 2^8729736 is an apocalyptic number.

It is an amenable number.

8729736 is an abundant number, since it is smaller than the sum of its proper divisors (13509624).

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

8729736 is a wasteful number, since it uses less digits than its factorization.

8729736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6925 (or 6921 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 8729736 is about 2954.6126649698. The cubic root of 8729736 is about 205.9050682708.

The spelling of 8729736 in words is "eight million, seven hundred twenty-nine thousand, seven hundred thirty-six".