228097765 has 8 divisors (see below), whose sum is σ = 312819840. Its totient is φ = 156409872.

The previous prime is 228097747. The next prime is 228097769. The reversal of 228097765 is 567790822.

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 228097765 - 2⁵ = 228097733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228097769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3258505 + ... + 3258574.

It is an arithmetic number, because the mean of its divisors is an integer number (39102480).

Almost surely, 2^228097765 is an apocalyptic number.

It is an amenable number.

228097765 is a deficient number, since it is larger than the sum of its proper divisors (84722075).

228097765 is an equidigital number, since it uses as much as digits as its factorization.

228097765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6517091.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 228097765 is about 15102.9058462271. The cubic root of 228097765 is about 610.9987803144.

The spelling of 228097765 in words is "two hundred twenty-eight million, ninety-seven thousand, seven hundred sixty-five".