6139648 has 36 divisors (see below), whose sum is σ = 12693240. Its totient is φ = 2960384.

The previous prime is 6139613. The next prime is 6139663. The reversal of 6139648 is 8469316.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 7011 + ... + 7837.

It is an arithmetic number, because the mean of its divisors is an integer number (352590).

Almost surely, 2^6139648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6139648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6346620).

6139648 is an abundant number, since it is smaller than the sum of its proper divisors (6553592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6139648 is an equidigital number, since it uses as much as digits as its factorization.

6139648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 858 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 6139648 is about 2477.8313098353. The cubic root of 6139648 is about 183.1110238337. Note that the first 3 decimals are identical.

The spelling of 6139648 in words is "six million, one hundred thirty-nine thousand, six hundred forty-eight".