6465000 has 80 divisors (see below), whose sum is σ = 20243520. Its totient is φ = 1720000.

The previous prime is 6464989. The next prime is 6465013. The reversal of 6465000 is 5646.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14785 + ... + 15215.

It is an arithmetic number, because the mean of its divisors is an integer number (253044).

Almost surely, 2^6465000 is an apocalyptic number.

6465000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6465000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10121760).

6465000 is an abundant number, since it is smaller than the sum of its proper divisors (13778520).

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

6465000 is a wasteful number, since it uses less digits than its factorization.

6465000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 6465000 is about 2542.6364270182. The cubic root of 6465000 is about 186.2899858595.

The spelling of 6465000 in words is "six million, four hundred sixty-five thousand".