6716945 has 4 divisors (see below), whose sum is σ = 8060340. Its totient is φ = 5373552.

The previous prime is 6716929. The next prime is 6716953. The reversal of 6716945 is 5496176.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1658944 + 5058001 = 1288^2 + 2249^2 .

It is a cyclic number.

It is not a de Polignac number, because 6716945 - 2⁴ = 6716929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6716899 and 6716908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671690 + ... + 671699.

It is an arithmetic number, because the mean of its divisors is an integer number (2015085).

Almost surely, 2^6716945 is an apocalyptic number.

It is an amenable number.

6716945 is a deficient number, since it is larger than the sum of its proper divisors (1343395).

6716945 is a wasteful number, since it uses less digits than its factorization.

6716945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343394.

The product of its digits is 45360, while the sum is 38.

The square root of 6716945 is about 2591.7069664605. The cubic root of 6716945 is about 188.6791585386.

The spelling of 6716945 in words is "six million, seven hundred sixteen thousand, nine hundred forty-five".