6663677 has 8 divisors (see below), whose sum is σ = 7127352. Its totient is φ = 6208000.

The previous prime is 6663673. The next prime is 6663731. The reversal of 6663677 is 7763666.

It can be written as a sum of positive squares in 4 ways, for example, as 4084441 + 2579236 = 2021^2 + 1606^2 .

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 6663677 - 2² = 6663673 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663673) 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, 224 + ... + 3657.

It is an arithmetic number, because the mean of its divisors is an integer number (890919).

Almost surely, 2^6663677 is an apocalyptic number.

It is an amenable number.

6663677 is a deficient number, since it is larger than the sum of its proper divisors (463675).

6663677 is a wasteful number, since it uses less digits than its factorization.

6663677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999.

The product of its digits is 190512, while the sum is 41.

The square root of 6663677 is about 2581.4098860894. The cubic root of 6663677 is about 188.1790677291.

The spelling of 6663677 in words is "six million, six hundred sixty-three thousand, six hundred seventy-seven".