6689410 has 32 divisors (see below), whose sum is σ = 14821632. Its totient is φ = 2116800.

The previous prime is 6689399. The next prime is 6689413. The reversal of 6689410 is 149866.

It is a super-2 number, since 2×6689410² = 89496412296200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6689413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2766 + ... + 4585.

It is an arithmetic number, because the mean of its divisors is an integer number (463176).

Almost surely, 2^6689410 is an apocalyptic number.

6689410 is an abundant number, since it is smaller than the sum of its proper divisors (8132222).

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

6689410 is a wasteful number, since it uses less digits than its factorization.

6689410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7378.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 6689410 is about 2586.3893751715. The cubic root of 6689410 is about 188.4209858175.

The spelling of 6689410 in words is "six million, six hundred eighty-nine thousand, four hundred ten".