228902077 has 2 divisors, whose sum is σ = 228902078. Its totient is φ = 228902076.

The previous prime is 228902039. The next prime is 228902081. The reversal of 228902077 is 770209822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206755641 + 22146436 = 14379^2 + 4706^2 .

It is a cyclic number.

It is not a de Polignac number, because 228902077 - 2¹⁹ = 228377789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228909077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114451038 + 114451039.

It is an arithmetic number, because the mean of its divisors is an integer number (114451039).

Almost surely, 2^228902077 is an apocalyptic number.

It is an amenable number.

228902077 is a deficient number, since it is larger than the sum of its proper divisors (1).

228902077 is an equidigital number, since it uses as much as digits as its factorization.

228902077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 228902077 is about 15129.5101374764. The cubic root of 228902077 is about 611.7161001492.

The spelling of 228902077 in words is "two hundred twenty-eight million, nine hundred two thousand, seventy-seven".