228713 has 2 divisors, whose sum is σ = 228714. Its totient is φ = 228712.

The previous prime is 228707. The next prime is 228731. The reversal of 228713 is 317822.

Added to its reverse (317822) it gives a triangular number (546535 = T₁₀₄₅).

Together with next prime (228731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222784 + 5929 = 472^2 + 77^2 .

It is a cyclic number.

It is not a de Polignac number, because 228713 - 2⁸ = 228457 is a prime.

It is not a weakly prime, because it can be changed into another prime (228733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114356 + 114357.

It is an arithmetic number, because the mean of its divisors is an integer number (114357).

2²²⁸⁷¹³ is an apocalyptic number.

It is an amenable number.

228713 is a deficient number, since it is larger than the sum of its proper divisors (1).

228713 is an equidigital number, since it uses as much as digits as its factorization.

228713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 23.

The square root of 228713 is about 478.2394797588. The cubic root of 228713 is about 61.1547624460.

Adding to 228713 its reverse (317822), we get a triangular number (546535 = T₁₀₄₅).

The spelling of 228713 in words is "two hundred twenty-eight thousand, seven hundred thirteen".