228696117 has 32 divisors (see below), whose sum is σ = 341577600. Its totient is φ = 135136512.

The previous prime is 228696109. The next prime is 228696133. The reversal of 228696117 is 711696822.

It is not a de Polignac number, because 228696117 - 2³ = 228696109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228696157) 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, 258558 + ... + 259440.

It is an arithmetic number, because the mean of its divisors is an integer number (10674300).

Almost surely, 2^228696117 is an apocalyptic number.

It is an amenable number.

228696117 is a deficient number, since it is larger than the sum of its proper divisors (112881483).

228696117 is a wasteful number, since it uses less digits than its factorization.

228696117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157.

The product of its digits is 72576, while the sum is 42.

The square root of 228696117 is about 15122.7020403101. The cubic root of 228696117 is about 611.5325764700.

The spelling of 228696117 in words is "two hundred twenty-eight million, six hundred ninety-six thousand, one hundred seventeen".