6717481 has 4 divisors (see below), whose sum is σ = 6881364. Its totient is φ = 6553600.

The previous prime is 6717479. The next prime is 6717493. The reversal of 6717481 is 1847176.

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 3686400 + 3031081 = 1920^2 + 1741^2 .

It is a 6-Lehmer number, since φ(6717481) divides (6717481-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 6717481 - 2¹ = 6717479 is a prime.

It is a super-2 number, since 2×6717481² = 90249101970722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6717401) 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, 81880 + ... + 81961.

It is an arithmetic number, because the mean of its divisors is an integer number (1720341).

Almost surely, 2^6717481 is an apocalyptic number.

It is an amenable number.

6717481 is a deficient number, since it is larger than the sum of its proper divisors (163883).

6717481 is a wasteful number, since it uses less digits than its factorization.

6717481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163882.

The product of its digits is 9408, while the sum is 34.

The square root of 6717481 is about 2591.8103711499. The cubic root of 6717481 is about 188.6841771564.

The spelling of 6717481 in words is "six million, seven hundred seventeen thousand, four hundred eighty-one".