228408897 has 16 divisors (see below), whose sum is σ = 309322368. Its totient is φ = 149892480.

The previous prime is 228408893. The next prime is 228408953. The reversal of 228408897 is 798804822.

It is not a de Polignac number, because 228408897 - 2² = 228408893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228408893) 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, 214747 + ... + 215807.

It is an arithmetic number, because the mean of its divisors is an integer number (19332648).

Almost surely, 2^228408897 is an apocalyptic number.

It is an amenable number.

228408897 is a deficient number, since it is larger than the sum of its proper divisors (80913471).

228408897 is a wasteful number, since it uses less digits than its factorization.

228408897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120.

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 228408897 is about 15113.2027380036. The cubic root of 228408897 is about 611.2764608131.

The spelling of 228408897 in words is "two hundred twenty-eight million, four hundred eight thousand, eight hundred ninety-seven".