228764523 has 8 divisors (see below), whose sum is σ = 328482448. Its totient is φ = 140778144.

The previous prime is 228764521. The next prime is 228764527. The reversal of 228764523 is 325467822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228764523 - 2¹ = 228764521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 5865757 = 228764523 / (2 + 2 + 8 + 7 + 6 + 4 + 5 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228764521) 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, 2932840 + ... + 2932917.

It is an arithmetic number, because the mean of its divisors is an integer number (41060306).

Almost surely, 2^228764523 is an apocalyptic number.

228764523 is a deficient number, since it is larger than the sum of its proper divisors (99717925).

228764523 is a wasteful number, since it uses less digits than its factorization.

228764523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5865773.

The product of its digits is 161280, while the sum is 39.

The square root of 228764523 is about 15124.9635702041. The cubic root of 228764523 is about 611.5935428560.

The spelling of 228764523 in words is "two hundred twenty-eight million, seven hundred sixty-four thousand, five hundred twenty-three".