228650873 has 4 divisors (see below), whose sum is σ = 249437328. Its totient is φ = 207864420.

The previous prime is 228650831. The next prime is 228650881. The reversal of 228650873 is 378056822.

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 228650873 - 2¹⁴ = 228634489 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 228650873.

It is not an unprimeable number, because it can be changed into a prime (228650803) 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, 10393211 + ... + 10393232.

It is an arithmetic number, because the mean of its divisors is an integer number (62359332).

Almost surely, 2^228650873 is an apocalyptic number.

It is an amenable number.

228650873 is a deficient number, since it is larger than the sum of its proper divisors (20786455).

228650873 is a wasteful number, since it uses less digits than its factorization.

228650873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20786454.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 228650873 is about 15121.2060696229. The cubic root of 228650873 is about 611.4922463804.

The spelling of 228650873 in words is "two hundred twenty-eight million, six hundred fifty thousand, eight hundred seventy-three".