228785671 has 8 divisors (see below), whose sum is σ = 234333440. Its totient is φ = 223248312.

The previous prime is 228785663. The next prime is 228785681. The reversal of 228785671 is 176587822.

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 228785671 - 2³ = 228785663 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 (228785651) 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, 59320 + ... + 63058.

It is an arithmetic number, because the mean of its divisors is an integer number (29291680).

Almost surely, 2^228785671 is an apocalyptic number.

228785671 is a deficient number, since it is larger than the sum of its proper divisors (5547769).

228785671 is a wasteful number, since it uses less digits than its factorization.

228785671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5205.

The product of its digits is 376320, while the sum is 46.

The square root of 228785671 is about 15125.6626631695. The cubic root of 228785671 is about 611.6123884088.

The spelling of 228785671 in words is "two hundred twenty-eight million, seven hundred eighty-five thousand, six hundred seventy-one".