2229728377 has 2 divisors, whose sum is σ = 2229728378. Its totient is φ = 2229728376.

The previous prime is 2229728359. The next prime is 2229728401. The reversal of 2229728377 is 7738279222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2000236176 + 229492201 = 44724^2 + 15149^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2229728377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2229728377.

It is not a weakly prime, because it can be changed into another prime (2229728327) 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 as a sum of consecutive naturals, namely, 1114864188 + 1114864189.

It is an arithmetic number, because the mean of its divisors is an integer number (1114864189).

Almost surely, 2^2229728377 is an apocalyptic number.

It is an amenable number.

2229728377 is a deficient number, since it is larger than the sum of its proper divisors (1).

2229728377 is an equidigital number, since it uses as much as digits as its factorization.

2229728377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1185408, while the sum is 49.

The square root of 2229728377 is about 47219.9997564591. Note that the first 3 decimals coincide. The cubic root of 2229728377 is about 1306.4235093129.

The spelling of 2229728377 in words is "two billion, two hundred twenty-nine million, seven hundred twenty-eight thousand, three hundred seventy-seven".