228170477 has 4 divisors (see below), whose sum is σ = 233025216. Its totient is φ = 223315740.

The previous prime is 228170473. The next prime is 228170483. The reversal of 228170477 is 774071822.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 228170477 - 2² = 228170473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228170477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228170471) 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 3 ways as a sum of consecutive naturals, for example, 2427299 + ... + 2427392.

It is an arithmetic number, because the mean of its divisors is an integer number (58256304).

Almost surely, 2^228170477 is an apocalyptic number.

It is an amenable number.

228170477 is a deficient number, since it is larger than the sum of its proper divisors (4854739).

228170477 is an equidigital number, since it uses as much as digits as its factorization.

228170477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854738.

The product of its (nonzero) digits is 43904, while the sum is 38.

The square root of 228170477 is about 15105.3128732906. The cubic root of 228170477 is about 611.0636972495.

The spelling of 228170477 in words is "two hundred twenty-eight million, one hundred seventy thousand, four hundred seventy-seven".