6685655 has 8 divisors (see below), whose sum is σ = 8059200. Its totient is φ = 5324256.

The previous prime is 6685643. The next prime is 6685667. The reversal of 6685655 is 5565866.

It is an interprime number because it is at equal distance from previous prime (6685643) and next prime (6685667).

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 6685655 - 2¹⁰ = 6684631 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1775 + ... + 4064.

It is an arithmetic number, because the mean of its divisors is an integer number (1007400).

Almost surely, 2^6685655 is an apocalyptic number.

6685655 is a deficient number, since it is larger than the sum of its proper divisors (1373545).

6685655 is a wasteful number, since it uses less digits than its factorization.

6685655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6073.

The product of its digits is 216000, while the sum is 41.

The square root of 6685655 is about 2585.6633578252. The cubic root of 6685655 is about 188.3857234536.

The spelling of 6685655 in words is "six million, six hundred eighty-five thousand, six hundred fifty-five".