981882229 has 2 divisors, whose sum is σ = 981882230. Its totient is φ = 981882228.

The previous prime is 981882191. The next prime is 981882233. The reversal of 981882229 is 922288189.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 981882225 + 4 = 31335^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 981882229 - 2¹⁷ = 981751157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (981882299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490941114 + 490941115.

It is an arithmetic number, because the mean of its divisors is an integer number (490941115).

Almost surely, 2^981882229 is an apocalyptic number.

It is an amenable number.

981882229 is a deficient number, since it is larger than the sum of its proper divisors (1).

981882229 is an equidigital number, since it uses as much as digits as its factorization.

981882229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 49.

The square root of 981882229 is about 31335.0000638264. Note that the first 4 decimals coincide. The cubic root of 981882229 is about 993.9238987684.

The spelling of 981882229 in words is "nine hundred eighty-one million, eight hundred eighty-two thousand, two hundred twenty-nine".