228704571 has 12 divisors (see below), whose sum is σ = 344714448. Its totient is φ = 145840464.

The previous prime is 228704549. The next prime is 228704579. The reversal of 228704571 is 175407822.

228704571 is a `hidden beast` number, since 2 + 2 + 87 + 0 + 4 + 571 = 666.

228704571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228704571 - 2¹³ = 228696379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228704579) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 552220 + ... + 552633.

It is an arithmetic number, because the mean of its divisors is an integer number (28726204).

Almost surely, 2^228704571 is an apocalyptic number.

228704571 is a deficient number, since it is larger than the sum of its proper divisors (116009877).

228704571 is a wasteful number, since it uses less digits than its factorization.

228704571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104882 (or 1104879 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 228704571 is about 15122.9815512683. The cubic root of 228704571 is about 611.5401116988.

The spelling of 228704571 in words is "two hundred twenty-eight million, seven hundred four thousand, five hundred seventy-one".