228827857 has 4 divisors (see below), whose sum is σ = 229636720. Its totient is φ = 228018996.

The previous prime is 228827831. The next prime is 228827861. The reversal of 228827857 is 758728822.

228827857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 758728822 = 2 ⋅379364411.

It is a cyclic number.

It is not a de Polignac number, because 228827857 - 2¹¹ = 228825809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228827857.

It is not an unprimeable number, because it can be changed into a prime (228827867) 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, 404007 + ... + 404572.

It is an arithmetic number, because the mean of its divisors is an integer number (57409180).

Almost surely, 2^228827857 is an apocalyptic number.

It is an amenable number.

228827857 is a deficient number, since it is larger than the sum of its proper divisors (808863).

228827857 is an equidigital number, since it uses as much as digits as its factorization.

228827857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808862.

The product of its digits is 1003520, while the sum is 49.

The square root of 228827857 is about 15127.0571163065. The cubic root of 228827857 is about 611.6499780218.

The spelling of 228827857 in words is "two hundred twenty-eight million, eight hundred twenty-seven thousand, eight hundred fifty-seven".