6663411 has 8 divisors (see below), whose sum is σ = 9871760. Its totient is φ = 4442256.

The previous prime is 6663407. The next prime is 6663431. The reversal of 6663411 is 1143666.

It is not a de Polignac number, because 6663411 - 2² = 6663407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 246793 = 6663411 / (6 + 6 + 6 + 3 + 4 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6663431) 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, 123370 + ... + 123423.

It is an arithmetic number, because the mean of its divisors is an integer number (1233970).

Almost surely, 2^6663411 is an apocalyptic number.

6663411 is a deficient number, since it is larger than the sum of its proper divisors (3208349).

6663411 is a wasteful number, since it uses less digits than its factorization.

6663411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246802 (or 246796 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 6663411 is about 2581.3583633428. The cubic root of 6663411 is about 188.1765637913.

The spelling of 6663411 in words is "six million, six hundred sixty-three thousand, four hundred eleven".