228472871 has 8 divisors (see below), whose sum is σ = 249362688. Its totient is φ = 207603000.

The previous prime is 228472847. The next prime is 228472897. The reversal of 228472871 is 178274822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228472871 - 2²² = 224278567 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 (228472841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29186 + ... + 36176.

It is an arithmetic number, because the mean of its divisors is an integer number (31170336).

Almost surely, 2^228472871 is an apocalyptic number.

228472871 is a deficient number, since it is larger than the sum of its proper divisors (20889817).

228472871 is a wasteful number, since it uses less digits than its factorization.

228472871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9973.

The product of its digits is 100352, while the sum is 41.

The square root of 228472871 is about 15115.3190836317. The cubic root of 228472871 is about 611.3335253589. Note that the first 3 decimals are identical.

The spelling of 228472871 in words is "two hundred twenty-eight million, four hundred seventy-two thousand, eight hundred seventy-one".