6716407 has 4 divisors (see below), whose sum is σ = 6724296. Its totient is φ = 6708520.

The previous prime is 6716401. The next prime is 6716417. The reversal of 6716407 is 7046176.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6716407 is a prime.

It is a super-2 number, since 2×6716407² = 90220245979298, 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 (6716401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2488 + ... + 4429.

It is an arithmetic number, because the mean of its divisors is an integer number (1681074).

Almost surely, 2^6716407 is an apocalyptic number.

6716407 is a deficient number, since it is larger than the sum of its proper divisors (7889).

6716407 is an equidigital number, since it uses as much as digits as its factorization.

6716407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7888.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 6716407 is about 2591.6031717838. The cubic root of 6716407 is about 188.6741209262.

The spelling of 6716407 in words is "six million, seven hundred sixteen thousand, four hundred seven".