6723663 has 8 divisors (see below), whose sum is σ = 9436800. Its totient is φ = 4246488.

The previous prime is 6723643. The next prime is 6723667. The reversal of 6723663 is 3663276.

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

It is not a de Polignac number, because 6723663 - 2¹⁴ = 6707279 is a prime.

6723663 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6723667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58923 + ... + 59036.

It is an arithmetic number, because the mean of its divisors is an integer number (1179600).

Almost surely, 2^6723663 is an apocalyptic number.

6723663 is a deficient number, since it is larger than the sum of its proper divisors (2713137).

6723663 is a wasteful number, since it uses less digits than its factorization.

6723663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117981.

The product of its digits is 27216, while the sum is 33.

The square root of 6723663 is about 2593.0026995744. The cubic root of 6723663 is about 188.7420405105.

The spelling of 6723663 in words is "six million, seven hundred twenty-three thousand, six hundred sixty-three".