27221696 has 28 divisors (see below), whose sum is σ = 56369712. Its totient is φ = 13018368.

The previous prime is 27221693. The next prime is 27221707. The reversal of 27221696 is 69612272.

It is not an unprimeable number, because it can be changed into a prime (27221693) 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, 7775 + ... + 10718.

It is an arithmetic number, because the mean of its divisors is an integer number (2013204).

Almost surely, 2^27221696 is an apocalyptic number.

It is an amenable number.

27221696 is an abundant number, since it is smaller than the sum of its proper divisors (29148016).

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

27221696 is a wasteful number, since it uses less digits than its factorization.

27221696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18528 (or 18518 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 27221696 is about 5217.4415185989. The cubic root of 27221696 is about 300.8188591616.

The spelling of 27221696 in words is "twenty-seven million, two hundred twenty-one thousand, six hundred ninety-six".