6408965 has 8 divisors (see below), whose sum is σ = 7817208. Its totient is φ = 5042880.

The previous prime is 6408953. The next prime is 6408977. The reversal of 6408965 is 5698046.

It is an interprime number because it is at equal distance from previous prime (6408953) and next prime (6408977).

It can be written as a sum of positive squares in 4 ways, for example, as 829921 + 5579044 = 911^2 + 2362^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6408965 - 2⁶ = 6408901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10202 + ... + 10811.

It is an arithmetic number, because the mean of its divisors is an integer number (977151).

Almost surely, 2^6408965 is an apocalyptic number.

It is an amenable number.

6408965 is a deficient number, since it is larger than the sum of its proper divisors (1408243).

6408965 is a wasteful number, since it uses less digits than its factorization.

6408965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21079.

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

The square root of 6408965 is about 2531.5933717720. The cubic root of 6408965 is about 185.7502042389.

The spelling of 6408965 in words is "six million, four hundred eight thousand, nine hundred sixty-five".