6720243 has 8 divisors (see below), whose sum is σ = 9432000. Its totient is φ = 4244328.

The previous prime is 6720239. The next prime is 6720251. The reversal of 6720243 is 3420276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6720243 - 2² = 6720239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6720283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58893 + ... + 59006.

It is an arithmetic number, because the mean of its divisors is an integer number (1179000).

Almost surely, 2^6720243 is an apocalyptic number.

6720243 is a deficient number, since it is larger than the sum of its proper divisors (2711757).

6720243 is a wasteful number, since it uses less digits than its factorization.

6720243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117921.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 6720243 is about 2592.3431485820. The cubic root of 6720243 is about 188.7100337877.

The spelling of 6720243 in words is "six million, seven hundred twenty thousand, two hundred forty-three".