27220686 has 8 divisors (see below), whose sum is σ = 54441384. Its totient is φ = 9073560.

The previous prime is 27220663. The next prime is 27220703. The reversal of 27220686 is 68602272.

It is a sphenic number, since it is the product of 3 distinct primes.

27220686 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2268385 + ... + 2268396.

It is an arithmetic number, because the mean of its divisors is an integer number (6805173).

Almost surely, 2^27220686 is an apocalyptic number.

27220686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27220686 is a wasteful number, since it uses less digits than its factorization.

27220686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536786.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 27220686 is about 5217.3447269660. The cubic root of 27220686 is about 300.8151387125.

The spelling of 27220686 in words is "twenty-seven million, two hundred twenty thousand, six hundred eighty-six".