6685977 has 4 divisors (see below), whose sum is σ = 8914640. Its totient is φ = 4457316.

The previous prime is 6685969. The next prime is 6686041. The reversal of 6685977 is 7795866.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6685977 - 2³ = 6685969 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6685907) 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, 1114327 + ... + 1114332.

It is an arithmetic number, because the mean of its divisors is an integer number (2228660).

Almost surely, 2^6685977 is an apocalyptic number.

It is an amenable number.

6685977 is a deficient number, since it is larger than the sum of its proper divisors (2228663).

6685977 is a wasteful number, since it uses less digits than its factorization.

6685977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228662.

The product of its digits is 635040, while the sum is 48.

The square root of 6685977 is about 2585.7256234953. The cubic root of 6685977 is about 188.3887478010.

The spelling of 6685977 in words is "six million, six hundred eighty-five thousand, nine hundred seventy-seven".