228707747 has 2 divisors, whose sum is σ = 228707748. Its totient is φ = 228707746.

The previous prime is 228707719. The next prime is 228707789. The reversal of 228707747 is 747707822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228707747 - 2⁶ = 228707683 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 228707698 and 228707707.

It is not a weakly prime, because it can be changed into another prime (228707707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114353873 + 114353874.

It is an arithmetic number, because the mean of its divisors is an integer number (114353874).

Almost surely, 2^228707747 is an apocalyptic number.

228707747 is a deficient number, since it is larger than the sum of its proper divisors (1).

228707747 is an equidigital number, since it uses as much as digits as its factorization.

228707747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 307328, while the sum is 44.

The square root of 228707747 is about 15123.0865566524. The cubic root of 228707747 is about 611.5429424867.

The spelling of 228707747 in words is "two hundred twenty-eight million, seven hundred seven thousand, seven hundred forty-seven".