228667573 has 4 divisors (see below), whose sum is σ = 231422688. Its totient is φ = 225912460.

The previous prime is 228667559. The next prime is 228667597. The reversal of 228667573 is 375766822.

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 228667573 - 2¹³ = 228659381 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228667273) 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, 1377433 + ... + 1377598.

It is an arithmetic number, because the mean of its divisors is an integer number (57855672).

Almost surely, 2^228667573 is an apocalyptic number.

It is an amenable number.

228667573 is a deficient number, since it is larger than the sum of its proper divisors (2755115).

228667573 is an equidigital number, since it uses as much as digits as its factorization.

228667573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755114.

The product of its digits is 846720, while the sum is 46.

The square root of 228667573 is about 15121.7582641702. The cubic root of 228667573 is about 611.5071332277.

The spelling of 228667573 in words is "two hundred twenty-eight million, six hundred sixty-seven thousand, five hundred seventy-three".