6685980 has 48 divisors (see below), whose sum is σ = 21396480. Its totient is φ = 1528128.

The previous prime is 6685969. The next prime is 6686041. The reversal of 6685980 is 895866.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7540 + ... + 8379.

It is an arithmetic number, because the mean of its divisors is an integer number (445760).

Almost surely, 2^6685980 is an apocalyptic number.

6685980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6685980 is an abundant number, since it is smaller than the sum of its proper divisors (14710500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6685980 is a wasteful number, since it uses less digits than its factorization.

6685980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15938 (or 15936 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 6685980 is about 2585.7262036032. The cubic root of 6685980 is about 188.3887759777.

The spelling of 6685980 in words is "six million, six hundred eighty-five thousand, nine hundred eighty".