6720975 has 30 divisors (see below), whose sum is σ = 12453320. Its totient is φ = 3583440.

The previous prime is 6720947. The next prime is 6721009. The reversal of 6720975 is 5790276.

It is not a de Polignac number, because 6720975 - 2⁶ = 6720911 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 366 + ... + 3684.

Almost surely, 2^6720975 is an apocalyptic number.

6720975 is a deficient number, since it is larger than the sum of its proper divisors (5732345).

6720975 is a wasteful number, since it uses less digits than its factorization.

6720975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341 (or 3327 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 6720975 is about 2592.4843297501. The cubic root of 6720975 is about 188.7168852626.

The spelling of 6720975 in words is "six million, seven hundred twenty thousand, nine hundred seventy-five".