228899217 has 8 divisors (see below), whose sum is σ = 305394624. Its totient is φ = 152501648.

The previous prime is 228899179. The next prime is 228899219. The reversal of 228899217 is 712998822.

228899217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 228899217 - 2⁷ = 228899089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228899219) 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, 18813 + ... + 28490.

It is an arithmetic number, because the mean of its divisors is an integer number (38174328).

Almost surely, 2^228899217 is an apocalyptic number.

It is an amenable number.

228899217 is a deficient number, since it is larger than the sum of its proper divisors (76495407).

228899217 is a wasteful number, since it uses less digits than its factorization.

228899217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48919.

The product of its digits is 290304, while the sum is 48.

The square root of 228899217 is about 15129.4156199108. The cubic root of 228899217 is about 611.7135524582.

The spelling of 228899217 in words is "two hundred twenty-eight million, eight hundred ninety-nine thousand, two hundred seventeen".