8724072 has 32 divisors (see below), whose sum is σ = 24926400. Its totient is φ = 2492544.

The previous prime is 8724071. The next prime is 8724073. The reversal of 8724072 is 2704278.

It is an interprime number because it is at equal distance from previous prime (8724071) and next prime (8724073).

It is a super-2 number, since 2×8724072² = 152218864522368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8724071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25797 + ... + 26132.

It is an arithmetic number, because the mean of its divisors is an integer number (778950).

Almost surely, 2^8724072 is an apocalyptic number.

It is an amenable number.

8724072 is an abundant number, since it is smaller than the sum of its proper divisors (16202328).

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

8724072 is a wasteful number, since it uses less digits than its factorization.

8724072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51945 (or 51941 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 8724072 is about 2953.6540081736. The cubic root of 8724072 is about 205.8605270756.

The spelling of 8724072 in words is "eight million, seven hundred twenty-four thousand, seventy-two".