228084757 has 4 divisors (see below), whose sum is σ = 229403340. Its totient is φ = 226766176.

The previous prime is 228084743. The next prime is 228084781. The reversal of 228084757 is 757480822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 197514916 + 30569841 = 14054^2 + 5529^2 .

It is a cyclic number.

It is not a de Polignac number, because 228084757 - 2¹⁹ = 227560469 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 (228084707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659032 + ... + 659377.

It is an arithmetic number, because the mean of its divisors is an integer number (57350835).

Almost surely, 2^228084757 is an apocalyptic number.

It is an amenable number.

228084757 is a deficient number, since it is larger than the sum of its proper divisors (1318583).

228084757 is a wasteful number, since it uses less digits than its factorization.

228084757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318582.

The product of its (nonzero) digits is 250880, while the sum is 43.

The square root of 228084757 is about 15102.4751944838. The cubic root of 228084757 is about 610.9871653778.

The spelling of 228084757 in words is "two hundred twenty-eight million, eighty-four thousand, seven hundred fifty-seven".