228593665 has 16 divisors (see below), whose sum is σ = 292336128. Its totient is φ = 171198016.

The previous prime is 228593663. The next prime is 228593669. The reversal of 228593665 is 566395822.

It is not a de Polignac number, because 228593665 - 2¹ = 228593663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228593663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15742 + ... + 26551.

It is an arithmetic number, because the mean of its divisors is an integer number (18271008).

Almost surely, 2^228593665 is an apocalyptic number.

It is an amenable number.

228593665 is a deficient number, since it is larger than the sum of its proper divisors (63742463).

228593665 is a wasteful number, since it uses less digits than its factorization.

228593665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42368.

The product of its digits is 777600, while the sum is 46.

The square root of 228593665 is about 15119.3143032348. The cubic root of 228593665 is about 611.4412440730.

The spelling of 228593665 in words is "two hundred twenty-eight million, five hundred ninety-three thousand, six hundred sixty-five".