8724740 has 48 divisors (see below), whose sum is σ = 19740672. Its totient is φ = 3227136.

The previous prime is 8724739. The next prime is 8724787. The reversal of 8724740 is 474278.

It is a super-2 number, since 2×8724740² = 152242176135200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8724697 and 8724706.

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, 22589 + ... + 22971.

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

Almost surely, 2^8724740 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 8724740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9870336).

8724740 is an abundant number, since it is smaller than the sum of its proper divisors (11015932).

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

8724740 is a wasteful number, since it uses less digits than its factorization.

8724740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 8724740 is about 2953.7670862815. The cubic root of 8724740 is about 205.8657811712.

The spelling of 8724740 in words is "eight million, seven hundred twenty-four thousand, seven hundred forty".