28074227 has 8 divisors (see below), whose sum is σ = 28843056. Its totient is φ = 27310752.

The previous prime is 28074223. The next prime is 28074271. The reversal of 28074227 is 72247082.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28074227 - 2² = 28074223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28074193 and 28074202.

It is not an unprimeable number, because it can be changed into a prime (28074223) 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 7 ways as a sum of consecutive naturals, for example, 10733 + ... + 13089.

It is an arithmetic number, because the mean of its divisors is an integer number (3605382).

Almost surely, 2^28074227 is an apocalyptic number.

28074227 is a deficient number, since it is larger than the sum of its proper divisors (768829).

28074227 is a wasteful number, since it uses less digits than its factorization.

28074227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 28074227 is about 5298.5117721866. The cubic root of 28074227 is about 303.9269900559.

The spelling of 28074227 in words is "twenty-eight million, seventy-four thousand, two hundred twenty-seven".