228534797 has 4 divisors (see below), whose sum is σ = 228573180. Its totient is φ = 228496416.

The previous prime is 228534737. The next prime is 228534811. The reversal of 228534797 is 797435822.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87067561 + 141467236 = 9331^2 + 11894^2 .

It is a cyclic number.

It is not a de Polignac number, because 228534797 - 2⁸ = 228534541 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 (228534707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8138 + ... + 22875.

It is an arithmetic number, because the mean of its divisors is an integer number (57143295).

Almost surely, 2^228534797 is an apocalyptic number.

It is an amenable number.

228534797 is a deficient number, since it is larger than the sum of its proper divisors (38383).

228534797 is an equidigital number, since it uses as much as digits as its factorization.

228534797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38382.

The product of its digits is 846720, while the sum is 47.

The square root of 228534797 is about 15117.3673964748. The cubic root of 228534797 is about 611.3887529517.

The spelling of 228534797 in words is "two hundred twenty-eight million, five hundred thirty-four thousand, seven hundred ninety-seven".