228809207 has 8 divisors (see below), whose sum is σ = 254921472. Its totient is φ = 203582200.

The previous prime is 228809173. The next prime is 228809209. The reversal of 228809207 is 702908822.

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 228809207 - 2⁶ = 228809143 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 (228809209) 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, 220769 + ... + 221802.

It is an arithmetic number, because the mean of its divisors is an integer number (31865184).

Almost surely, 2^228809207 is an apocalyptic number.

228809207 is a deficient number, since it is larger than the sum of its proper divisors (26112265).

228809207 is a wasteful number, since it uses less digits than its factorization.

228809207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442629.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 228809207 is about 15126.4406586612. The cubic root of 228809207 is about 611.6333606074.

The spelling of 228809207 in words is "two hundred twenty-eight million, eight hundred nine thousand, two hundred seven".