27139616 has 48 divisors (see below), whose sum is σ = 64665216. Its totient is φ = 10945536.

The previous prime is 27139613. The next prime is 27139627. The reversal of 27139616 is 61693172.

It is not an unprimeable number, because it can be changed into a prime (27139613) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 245 + ... + 7371.

It is an arithmetic number, because the mean of its divisors is an integer number (1347192).

Almost surely, 2^27139616 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 27139616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32332608).

27139616 is an abundant number, since it is smaller than the sum of its proper divisors (37525600).

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

27139616 is a wasteful number, since it uses less digits than its factorization.

27139616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7161 (or 7153 counting only the distinct ones).

The product of its digits is 13608, while the sum is 35.

The square root of 27139616 is about 5209.5696559313. The cubic root of 27139616 is about 300.5162075527.

The spelling of 27139616 in words is "twenty-seven million, one hundred thirty-nine thousand, six hundred sixteen".