6538945 has 16 divisors (see below), whose sum is σ = 9440640. Its totient is φ = 4247424.

The previous prime is 6538937. The next prime is 6538963. The reversal of 6538945 is 5498356.

6538945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 6538945 - 2³ = 6538937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6538898 and 6538907.

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 15 ways as a sum of consecutive naturals, for example, 4252 + ... + 5581.

It is an arithmetic number, because the mean of its divisors is an integer number (590040).

Almost surely, 2^6538945 is an apocalyptic number.

It is an amenable number.

6538945 is a deficient number, since it is larger than the sum of its proper divisors (2901695).

6538945 is a wasteful number, since it uses less digits than its factorization.

6538945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9864.

The product of its digits is 129600, while the sum is 40.

The square root of 6538945 is about 2557.1360933670. The cubic root of 6538945 is about 186.9975406465.

The spelling of 6538945 in words is "six million, five hundred thirty-eight thousand, nine hundred forty-five".