8746720 has 24 divisors (see below), whose sum is σ = 20664504. Its totient is φ = 3498624.

The previous prime is 8746709. The next prime is 8746723. The reversal of 8746720 is 276478.

It is a super-2 number, since 2×8746720² = 153010221516800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8746723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27174 + ... + 27493.

It is an arithmetic number, because the mean of its divisors is an integer number (861021).

Almost surely, 2^8746720 is an apocalyptic number.

8746720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8746720 is an abundant number, since it is smaller than the sum of its proper divisors (11917784).

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

8746720 is a wasteful number, since it uses less digits than its factorization.

8746720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54682 (or 54674 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 8746720 is about 2957.4854183918. The cubic root of 8746720 is about 206.0385135519.

The spelling of 8746720 in words is "eight million, seven hundred forty-six thousand, seven hundred twenty".