6720375 has 16 divisors (see below), whose sum is σ = 11183328. Its totient is φ = 3584000.

The previous prime is 6720367. The next prime is 6720377. The reversal of 6720375 is 5730276.

It is not a de Polignac number, because 6720375 - 2³ = 6720367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6720377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8586 + ... + 9335.

It is an arithmetic number, because the mean of its divisors is an integer number (698958).

Almost surely, 2^6720375 is an apocalyptic number.

6720375 is a deficient number, since it is larger than the sum of its proper divisors (4462953).

6720375 is a wasteful number, since it uses less digits than its factorization.

6720375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17939 (or 17929 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 6720375 is about 2592.3686080494. The cubic root of 6720375 is about 188.7112693363.

Subtracting from 6720375 its reverse (5730276), we obtain a palindrome (990099).

The spelling of 6720375 in words is "six million, seven hundred twenty thousand, three hundred seventy-five".