6534921 has 8 divisors (see below), whose sum is σ = 9092160. Its totient is φ = 4167152.

The previous prime is 6534907. The next prime is 6534929. The reversal of 6534921 is 1294356.

6534921 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6534921 - 2¹⁴ = 6518537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6534929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47286 + ... + 47423.

It is an arithmetic number, because the mean of its divisors is an integer number (1136520).

Almost surely, 2^6534921 is an apocalyptic number.

It is an amenable number.

6534921 is a deficient number, since it is larger than the sum of its proper divisors (2557239).

6534921 is a wasteful number, since it uses less digits than its factorization.

6534921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94735.

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

The square root of 6534921 is about 2556.3491545562. The cubic root of 6534921 is about 186.9591739828.

The spelling of 6534921 in words is "six million, five hundred thirty-four thousand, nine hundred twenty-one".