6725663 has 4 divisors (see below), whose sum is σ = 7686480. Its totient is φ = 5764848.

The previous prime is 6725657. The next prime is 6725687. The reversal of 6725663 is 3665276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6725663 - 2¹² = 6721567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6725633) 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 3 ways as a sum of consecutive naturals, for example, 480398 + ... + 480411.

It is an arithmetic number, because the mean of its divisors is an integer number (1921620).

Almost surely, 2^6725663 is an apocalyptic number.

6725663 is a deficient number, since it is larger than the sum of its proper divisors (960817).

6725663 is an equidigital number, since it uses as much as digits as its factorization.

6725663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960816.

The product of its digits is 45360, while the sum is 35.

The square root of 6725663 is about 2593.3883241813. The cubic root of 6725663 is about 188.7607528631.

The spelling of 6725663 in words is "six million, seven hundred twenty-five thousand, six hundred sixty-three".