6685490 has 16 divisors (see below), whose sum is σ = 13753152. Its totient is φ = 2292144.

The previous prime is 6685489. The next prime is 6685499. The reversal of 6685490 is 945866.

It is not an unprimeable number, because it can be changed into a prime (6685499) 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, 47684 + ... + 47823.

It is an arithmetic number, because the mean of its divisors is an integer number (859572).

Almost surely, 2^6685490 is an apocalyptic number.

6685490 is an abundant number, since it is smaller than the sum of its proper divisors (7067662).

6685490 is a wasteful number, since it uses less digits than its factorization.

6685490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95521.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 6685490 is about 2585.6314509226. The cubic root of 6685490 is about 188.3841736728.

The spelling of 6685490 in words is "six million, six hundred eighty-five thousand, four hundred ninety".