228027897 has 6 divisors (see below), whose sum is σ = 329373642. Its totient is φ = 152018592.

The previous prime is 228027881. The next prime is 228027977. The reversal of 228027897 is 798720822.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 141705216 + 86322681 = 11904^2 + 9291^2 .

It is not a de Polignac number, because 228027897 - 2⁴ = 228027881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228027827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12668208 + ... + 12668225.

It is an arithmetic number, because the mean of its divisors is an integer number (54895607).

Almost surely, 2^228027897 is an apocalyptic number.

It is an amenable number.

228027897 is a deficient number, since it is larger than the sum of its proper divisors (101345745).

228027897 is a wasteful number, since it uses less digits than its factorization.

228027897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25336439 (or 25336436 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 228027897 is about 15100.5926042656. The cubic root of 228027897 is about 610.9363894909.

The spelling of 228027897 in words is "two hundred twenty-eight million, twenty-seven thousand, eight hundred ninety-seven".