6455409 has 16 divisors (see below), whose sum is σ = 9106944. Its totient is φ = 4060800.

The previous prime is 6455399. The next prime is 6455419. The reversal of 6455409 is 9045546.

It is an interprime number because it is at equal distance from previous prime (6455399) and next prime (6455419).

It is not a de Polignac number, because 6455409 - 2⁵ = 6455377 is a prime.

It is a Curzon number.

6455409 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6455409.

It is not an unprimeable number, because it can be changed into a prime (6455419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2967 + ... + 4659.

It is an arithmetic number, because the mean of its divisors is an integer number (569184).

Almost surely, 2^6455409 is an apocalyptic number.

It is an amenable number.

6455409 is a deficient number, since it is larger than the sum of its proper divisors (2651535).

6455409 is a wasteful number, since it uses less digits than its factorization.

6455409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 6455409 is about 2540.7496925120. The cubic root of 6455409 is about 186.1978182119.

The spelling of 6455409 in words is "six million, four hundred fifty-five thousand, four hundred nine".