981792241 has 2 divisors, whose sum is σ = 981792242. Its totient is φ = 981792240.

The previous prime is 981792239. The next prime is 981792269. The reversal of 981792241 is 142297189.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 871961841 + 109830400 = 29529^2 + 10480^2 .

It is a cyclic number.

It is not a de Polignac number, because 981792241 - 2¹ = 981792239 is a prime.

Together with 981792239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (981792221) 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, 490896120 + 490896121.

It is an arithmetic number, because the mean of its divisors is an integer number (490896121).

Almost surely, 2^981792241 is an apocalyptic number.

It is an amenable number.

981792241 is a deficient number, since it is larger than the sum of its proper divisors (1).

981792241 is an equidigital number, since it uses as much as digits as its factorization.

981792241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 43.

The square root of 981792241 is about 31333.5641285826. The cubic root of 981792241 is about 993.8935339739.

The spelling of 981792241 in words is "nine hundred eighty-one million, seven hundred ninety-two thousand, two hundred forty-one".