27696560 has 20 divisors (see below), whose sum is σ = 64394688. Its totient is φ = 11078592.

The previous prime is 27696551. The next prime is 27696563. The reversal of 27696560 is 6569672.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (27696563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173024 + ... + 173183.

Almost surely, 2^27696560 is an apocalyptic number.

27696560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27696560 is an abundant number, since it is smaller than the sum of its proper divisors (36698128).

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

27696560 is a wasteful number, since it uses less digits than its factorization.

27696560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346220 (or 346214 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 27696560 is about 5262.7521317273. The cubic root of 27696560 is about 302.5579790058.

The spelling of 27696560 in words is "twenty-seven million, six hundred ninety-six thousand, five hundred sixty".