6720475 has 6 divisors (see below), whose sum is σ = 8333420. Its totient is φ = 5376360.

The previous prime is 6720473. The next prime is 6720481. The reversal of 6720475 is 5740276.

It is not a de Polignac number, because 6720475 - 2¹ = 6720473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6720473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134385 + ... + 134434.

Almost surely, 2^6720475 is an apocalyptic number.

6720475 is a deficient number, since it is larger than the sum of its proper divisors (1612945).

6720475 is a wasteful number, since it uses less digits than its factorization.

6720475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268829 (or 268824 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 6720475 is about 2592.3878953583. The cubic root of 6720475 is about 188.7122053473.

The spelling of 6720475 in words is "six million, seven hundred twenty thousand, four hundred seventy-five".