6725679 has 8 divisors (see below), whose sum is σ = 8980272. Its totient is φ = 4477440.

The previous prime is 6725657. The next prime is 6725687. The reversal of 6725679 is 9765276.

It is a happy number.

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

It is not a de Polignac number, because 6725679 - 2⁸ = 6725423 is a prime.

It is a super-2 number, since 2×6725679² = 90469516022082, which contains 22 as substring.

6725679 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6725679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6725479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2127 + ... + 4239.

It is an arithmetic number, because the mean of its divisors is an integer number (1122534).

Almost surely, 2^6725679 is an apocalyptic number.

6725679 is a deficient number, since it is larger than the sum of its proper divisors (2254593).

6725679 is a wasteful number, since it uses less digits than its factorization.

6725679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3177.

The product of its digits is 158760, while the sum is 42.

The square root of 6725679 is about 2593.3914089470. The cubic root of 6725679 is about 188.7609025470.

The spelling of 6725679 in words is "six million, seven hundred twenty-five thousand, six hundred seventy-nine".