920782241 has 2 divisors, whose sum is σ = 920782242. Its totient is φ = 920782240.

The previous prime is 920782231. The next prime is 920782279. The reversal of 920782241 is 142287029.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 899760016 + 21022225 = 29996^2 + 4585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920782241 is a prime.

It is not a weakly prime, because it can be changed into another prime (920782211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460391120 + 460391121.

It is an arithmetic number, because the mean of its divisors is an integer number (460391121).

Almost surely, 2^920782241 is an apocalyptic number.

It is an amenable number.

920782241 is a deficient number, since it is larger than the sum of its proper divisors (1).

920782241 is an equidigital number, since it uses as much as digits as its factorization.

920782241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 920782241 is about 30344.3938973907. The cubic root of 920782241 is about 972.8643998898.

The spelling of 920782241 in words is "nine hundred twenty million, seven hundred eighty-two thousand, two hundred forty-one".