27661792 has 48 divisors (see below), whose sum is σ = 56996352. Its totient is φ = 13201920.

The previous prime is 27661789. The next prime is 27661793. The reversal of 27661792 is 29716672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27661793) 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, 72033 + ... + 72415.

It is an arithmetic number, because the mean of its divisors is an integer number (1187424).

Almost surely, 2^27661792 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 27661792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28498176).

27661792 is an abundant number, since it is smaller than the sum of its proper divisors (29334560).

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

27661792 is a wasteful number, since it uses less digits than its factorization.

27661792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 483 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 27661792 is about 5259.4478797684. The cubic root of 27661792 is about 302.4313237991.

The spelling of 27661792 in words is "twenty-seven million, six hundred sixty-one thousand, seven hundred ninety-two".