6465900 has 72 divisors (see below), whose sum is σ = 21387520. Its totient is φ = 1477440.

The previous prime is 6465883. The next prime is 6465911. The reversal of 6465900 is 95646.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 23 ways as a sum of consecutive naturals, for example, 561 + ... + 3639.

Almost surely, 2^6465900 is an apocalyptic number.

6465900 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 6465900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10693760).

6465900 is an abundant number, since it is smaller than the sum of its proper divisors (14921620).

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

6465900 is a wasteful number, since it uses less digits than its factorization.

6465900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3103 (or 3096 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 6465900 is about 2542.8134025131. The cubic root of 6465900 is about 186.2986300053.

The spelling of 6465900 in words is "six million, four hundred sixty-five thousand, nine hundred".