228117617 has 16 divisors (see below), whose sum is σ = 288352512. Its totient is φ = 175608000.

The previous prime is 228117607. The next prime is 228117661. The reversal of 228117617 is 716711822.

228117617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 228117617 - 2⁴ = 228117601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228117607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30509 + ... + 37242.

It is an arithmetic number, because the mean of its divisors is an integer number (18022032).

Almost surely, 2^228117617 is an apocalyptic number.

It is an amenable number.

228117617 is a deficient number, since it is larger than the sum of its proper divisors (60234895).

228117617 is a wasteful number, since it uses less digits than its factorization.

228117617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67808.

The product of its digits is 9408, while the sum is 35.

The square root of 228117617 is about 15103.5630564447. The cubic root of 228117617 is about 611.0165054565.

The spelling of 228117617 in words is "two hundred twenty-eight million, one hundred seventeen thousand, six hundred seventeen".