8343720 has 288 divisors, whose sum is σ = 35212320. Its totient is φ = 1693440.

The previous prime is 8343703. The next prime is 8343781. The reversal of 8343720 is 273438.

8343720 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×8343720⁴ (a number of 29 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 194019 + ... + 194061.

It is an arithmetic number, because the mean of its divisors is an integer number (122265).

Almost surely, 2^8343720 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 8343720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17606160).

8343720 is an abundant number, since it is smaller than the sum of its proper divisors (26868600).

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

8343720 is a wasteful number, since it uses less digits than its factorization.

8343720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 8343720 is about 2888.5498091603. The cubic root of 8343720 is about 202.8242632875.

It can be divided in two parts, 834 and 3720, that added together give a palindrome (4554).

The spelling of 8343720 in words is "eight million, three hundred forty-three thousand, seven hundred twenty".