228061773 has 6 divisors (see below), whose sum is σ = 329422574. Its totient is φ = 152041176.

The previous prime is 228061759. The next prime is 228061777. The reversal of 228061773 is 377160822.

It can be written as a sum of positive squares in only one way, i.e., 190937124 + 37124649 = 13818^2 + 6093^2 .

It is not a de Polignac number, because 228061773 - 2⁵ = 228061741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228061777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12670090 + ... + 12670107.

Almost surely, 2^228061773 is an apocalyptic number.

It is an amenable number.

228061773 is a deficient number, since it is larger than the sum of its proper divisors (101360801).

228061773 is a wasteful number, since it uses less digits than its factorization.

228061773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25340203 (or 25340200 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 228061773 is about 15101.7142404430. The cubic root of 228061773 is about 610.9666417197.

The spelling of 228061773 in words is "two hundred twenty-eight million, sixty-one thousand, seven hundred seventy-three".