228888723 has 8 divisors (see below), whose sum is σ = 348782848. Its totient is φ = 130793544.

The previous prime is 228888721. The next prime is 228888727. The reversal of 228888723 is 327888822.

It is a happy number.

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

It is not a de Polignac number, because 228888723 - 2¹ = 228888721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228888721) 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, 5449711 + ... + 5449752.

It is an arithmetic number, because the mean of its divisors is an integer number (43597856).

Almost surely, 2^228888723 is an apocalyptic number.

228888723 is a deficient number, since it is larger than the sum of its proper divisors (119894125).

228888723 is a wasteful number, since it uses less digits than its factorization.

228888723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10899473.

The product of its digits is 688128, while the sum is 48.

The square root of 228888723 is about 15129.0688080926. The cubic root of 228888723 is about 611.7042042099.

Subtracting 228888723 from its reverse (327888822), we obtain a palindrome (99000099).

The spelling of 228888723 in words is "two hundred twenty-eight million, eight hundred eighty-eight thousand, seven hundred twenty-three".