6716663 has 4 divisors (see below), whose sum is σ = 6723768. Its totient is φ = 6709560.

The previous prime is 6716653. The next prime is 6716681. The reversal of 6716663 is 3666176.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6716663 - 2¹⁴ = 6700279 is a prime.

It is a super-2 number, since 2×6716663² = 90227123711138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6716653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1868 + ... + 4113.

It is an arithmetic number, because the mean of its divisors is an integer number (1680942).

Almost surely, 2^6716663 is an apocalyptic number.

6716663 is a deficient number, since it is larger than the sum of its proper divisors (7105).

6716663 is a wasteful number, since it uses less digits than its factorization.

6716663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7104.

The product of its digits is 27216, while the sum is 35.

The square root of 6716663 is about 2591.6525615908. The cubic root of 6716663 is about 188.6765180393.

The spelling of 6716663 in words is "six million, seven hundred sixteen thousand, six hundred sixty-three".