6618481 has 8 divisors (see below), whose sum is σ = 6796224. Its totient is φ = 6442800.

The previous prime is 6618463. The next prime is 6618487. The reversal of 6618481 is 1848166.

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

It is a cyclic number.

It is not a de Polignac number, because 6618481 - 2⁹ = 6617969 is a prime.

It is a super-2 number, since 2×6618481² = 87608581494722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6618487) 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, 7590 + ... + 8416.

It is an arithmetic number, because the mean of its divisors is an integer number (849528).

Almost surely, 2^6618481 is an apocalyptic number.

It is an amenable number.

6618481 is a deficient number, since it is larger than the sum of its proper divisors (177743).

6618481 is a wasteful number, since it uses less digits than its factorization.

6618481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031.

The product of its digits is 9216, while the sum is 34.

The square root of 6618481 is about 2572.6408610609. The cubic root of 6618481 is about 187.7526644078.

The spelling of 6618481 in words is "six million, six hundred eighteen thousand, four hundred eighty-one".