8729448 has 96 divisors (see below), whose sum is σ = 27387360. Its totient is φ = 2298240.

The previous prime is 8729429. The next prime is 8729467. The reversal of 8729448 is 8449278.

It is an interprime number because it is at equal distance from previous prime (8729429) and next prime (8729467).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15003 + ... + 15573.

It is an arithmetic number, because the mean of its divisors is an integer number (285285).

Almost surely, 2^8729448 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 8729448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13693680).

8729448 is an abundant number, since it is smaller than the sum of its proper divisors (18657912).

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

8729448 is a wasteful number, since it uses less digits than its factorization.

8729448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607 (or 596 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 8729448 is about 2954.5639272150. The cubic root of 8729448 is about 205.9028039293.

The spelling of 8729448 in words is "eight million, seven hundred twenty-nine thousand, four hundred forty-eight".