228887697 has 32 divisors (see below), whose sum is σ = 327979008. Its totient is φ = 141647616.

The previous prime is 228887693. The next prime is 228887717. The reversal of 228887697 is 796788822.

It is not a de Polignac number, because 228887697 - 2² = 228887693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228887693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 528393 + ... + 528825.

It is an arithmetic number, because the mean of its divisors is an integer number (10249344).

Almost surely, 2^228887697 is an apocalyptic number.

It is an amenable number.

228887697 is a deficient number, since it is larger than the sum of its proper divisors (99091311).

228887697 is a wasteful number, since it uses less digits than its factorization.

228887697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669.

The product of its digits is 5419008, while the sum is 57.

The square root of 228887697 is about 15129.0348998209. The cubic root of 228887697 is about 611.7032902149.

The spelling of 228887697 in words is "two hundred twenty-eight million, eight hundred eighty-seven thousand, six hundred ninety-seven".