6490209 has 32 divisors (see below), whose sum is σ = 10450944. Its totient is φ = 3534080.

The previous prime is 6490201. The next prime is 6490213. The reversal of 6490209 is 9020946.

It is not a de Polignac number, because 6490209 - 2³ = 6490201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6490201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12652 + ... + 13154.

It is an arithmetic number, because the mean of its divisors is an integer number (326592).

Almost surely, 2^6490209 is an apocalyptic number.

6490209 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

6490209 is a deficient number, since it is larger than the sum of its proper divisors (3960735).

6490209 is a wasteful number, since it uses less digits than its factorization.

6490209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 6490209 is about 2547.5888600793. The cubic root of 6490209 is about 186.5318055807.

The spelling of 6490209 in words is "six million, four hundred ninety thousand, two hundred nine".