6445089 has 32 divisors (see below), whose sum is σ = 11073280. Its totient is φ = 3674160.

The previous prime is 6445079. The next prime is 6445093. The reversal of 6445089 is 9805446.

6445089 is a `hidden beast` number, since 644 + 5 + 0 + 8 + 9 = 666.

It is not a de Polignac number, because 6445089 - 2⁷ = 6444961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6445079) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15099 + ... + 15519.

It is an arithmetic number, because the mean of its divisors is an integer number (346040).

Almost surely, 2^6445089 is an apocalyptic number.

It is an amenable number.

6445089 is a deficient number, since it is larger than the sum of its proper divisors (4628191).

6445089 is an frugal number, since it uses more digits than its factorization.

6445089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 6445089 is about 2538.7179835500. The cubic root of 6445089 is about 186.0985429959.

The spelling of 6445089 in words is "six million, four hundred forty-five thousand, eighty-nine".