228724003 has 4 divisors (see below), whose sum is σ = 229190328. Its totient is φ = 228257680.

The previous prime is 228723977. The next prime is 228724049. The reversal of 228724003 is 300427822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300427822 = 2 ⋅150213911.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228724003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228724063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232426 + ... + 233407.

It is an arithmetic number, because the mean of its divisors is an integer number (57297582).

Almost surely, 2^228724003 is an apocalyptic number.

228724003 is a deficient number, since it is larger than the sum of its proper divisors (466325).

228724003 is an equidigital number, since it uses as much as digits as its factorization.

228724003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466324.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 228724003 is about 15123.6240035251. The cubic root of 228724003 is about 611.5574311470.

The spelling of 228724003 in words is "two hundred twenty-eight million, seven hundred twenty-four thousand, three".