27221828 has 12 divisors (see below), whose sum is σ = 50440572. Its totient is φ = 12810240.

The previous prime is 27221819. The next prime is 27221837. The reversal of 27221828 is 82812272.

It is an interprime number because it is at equal distance from previous prime (27221819) and next prime (27221837).

It can be written as a sum of positive squares in 2 ways, for example, as 16581184 + 10640644 = 4072^2 + 3262^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27221794 and 27221803.

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, 200093 + ... + 200228.

It is an arithmetic number, because the mean of its divisors is an integer number (4203381).

Almost surely, 2^27221828 is an apocalyptic number.

It is an amenable number.

27221828 is a deficient number, since it is larger than the sum of its proper divisors (23218744).

27221828 is a wasteful number, since it uses less digits than its factorization.

27221828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400342 (or 400340 counting only the distinct ones).

The product of its digits is 7168, while the sum is 32.

The square root of 27221828 is about 5217.4541684619. The cubic root of 27221828 is about 300.8193453917.

The spelling of 27221828 in words is "twenty-seven million, two hundred twenty-one thousand, eight hundred twenty-eight".