228477 has 4 divisors (see below), whose sum is σ = 304640. Its totient is φ = 152316.

The previous prime is 228469. The next prime is 228479. The reversal of 228477 is 774822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 228477 - 2³ = 228469 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 228477.

It is not an unprimeable number, because it can be changed into a prime (228479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38077 + ... + 38082.

It is an arithmetic number, because the mean of its divisors is an integer number (76160).

2²²⁸⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

228477 is a deficient number, since it is larger than the sum of its proper divisors (76163).

228477 is an equidigital number, since it uses as much as digits as its factorization.

228477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76162.

The product of its digits is 6272, while the sum is 30.

The square root of 228477 is about 477.9926777682. The cubic root of 228477 is about 61.1337208044.

The spelling of 228477 in words is "two hundred twenty-eight thousand, four hundred seventy-seven".