227972761 has 2 divisors, whose sum is σ = 227972762. Its totient is φ = 227972760.

The previous prime is 227972687. The next prime is 227972777. The reversal of 227972761 is 167279722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149915536 + 78057225 = 12244^2 + 8835^2 .

It is a cyclic number.

It is not a de Polignac number, because 227972761 - 2¹¹ = 227970713 is a prime.

It is not a weakly prime, because it can be changed into another prime (227978761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113986380 + 113986381.

It is an arithmetic number, because the mean of its divisors is an integer number (113986381).

Almost surely, 2^227972761 is an apocalyptic number.

It is an amenable number.

227972761 is a deficient number, since it is larger than the sum of its proper divisors (1).

227972761 is an equidigital number, since it uses as much as digits as its factorization.

227972761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 43.

The square root of 227972761 is about 15098.7668701785. The cubic root of 227972761 is about 610.8871450717.

The spelling of 227972761 in words is "two hundred twenty-seven million, nine hundred seventy-two thousand, seven hundred sixty-one".