6725665 has 8 divisors (see below), whose sum is σ = 8173440. Its totient is φ = 5312112.

The previous prime is 6725657. The next prime is 6725687. The reversal of 6725665 is 5665276.

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

It is a cyclic number.

It is not a de Polignac number, because 6725665 - 2³ = 6725657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8119 + ... + 8908.

It is an arithmetic number, because the mean of its divisors is an integer number (1021680).

Almost surely, 2^6725665 is an apocalyptic number.

It is an amenable number.

6725665 is a deficient number, since it is larger than the sum of its proper divisors (1447775).

6725665 is a wasteful number, since it uses less digits than its factorization.

6725665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17111.

The product of its digits is 75600, while the sum is 37.

The square root of 6725665 is about 2593.3887097772. The cubic root of 6725665 is about 188.7607715736.

The spelling of 6725665 in words is "six million, seven hundred twenty-five thousand, six hundred sixty-five".