6639548 has 12 divisors (see below), whose sum is σ = 12124560. Its totient is φ = 3175392.

The previous prime is 6639547. The next prime is 6639593. The reversal of 6639548 is 8459366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6639547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35993 + ... + 36176.

It is an arithmetic number, because the mean of its divisors is an integer number (1010380).

Almost surely, 2^6639548 is an apocalyptic number.

It is an amenable number.

6639548 is a deficient number, since it is larger than the sum of its proper divisors (5485012).

6639548 is a wasteful number, since it uses less digits than its factorization.

6639548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72196 (or 72194 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 6639548 is about 2576.7320388430. The cubic root of 6639548 is about 187.9516625389.

The spelling of 6639548 in words is "six million, six hundred thirty-nine thousand, five hundred forty-eight".