27222028 has 6 divisors (see below), whose sum is σ = 47638556. Its totient is φ = 13611012.

The previous prime is 27222023. The next prime is 27222031. The reversal of 27222028 is 82022272.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27221993 and 27222011.

It is not an unprimeable number, because it can be changed into a prime (27222023) 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 as a sum of consecutive naturals, namely, 3402750 + ... + 3402757.

Almost surely, 2^27222028 is an apocalyptic number.

It is an amenable number.

27222028 is a deficient number, since it is larger than the sum of its proper divisors (20416528).

27222028 is a wasteful number, since it uses less digits than its factorization.

27222028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6805511 (or 6805509 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 27222028 is about 5217.4733348624. The cubic root of 27222028 is about 300.8200821010.

The spelling of 27222028 in words is "twenty-seven million, two hundred twenty-two thousand, twenty-eight".