6505389 has 24 divisors (see below), whose sum is σ = 10700352. Its totient is φ = 3769920.

The previous prime is 6505363. The next prime is 6505393. The reversal of 6505389 is 9835056.

6505389 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6505389 - 2⁵ = 6505357 is a prime.

It is a Curzon number.

6505389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6505189) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 849 + ... + 3705.

It is an arithmetic number, because the mean of its divisors is an integer number (445848).

Almost surely, 2^6505389 is an apocalyptic number.

6505389 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

6505389 is a deficient number, since it is larger than the sum of its proper divisors (4194963).

6505389 is a wasteful number, since it uses less digits than its factorization.

6505389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897 (or 2894 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 6505389 is about 2550.5664076828. The cubic root of 6505389 is about 186.6771192418.

The spelling of 6505389 in words is "six million, five hundred five thousand, three hundred eighty-nine".