938756641 has 2 divisors, whose sum is σ = 938756642. Its totient is φ = 938756640.

The previous prime is 938756629. The next prime is 938756657. The reversal of 938756641 is 146657839.

938756641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 903603600 + 35153041 = 30060^2 + 5929^2 .

It is an emirp because it is prime and its reverse (146657839) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-938756641 is a prime.

It is not a weakly prime, because it can be changed into another prime (938756141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469378320 + 469378321.

It is an arithmetic number, because the mean of its divisors is an integer number (469378321).

Almost surely, 2^938756641 is an apocalyptic number.

It is an amenable number.

938756641 is a deficient number, since it is larger than the sum of its proper divisors (1).

938756641 is an equidigital number, since it uses as much as digits as its factorization.

938756641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 938756641 is about 30639.1357743654. The cubic root of 938756641 is about 979.1540113344.

The spelling of 938756641 in words is "nine hundred thirty-eight million, seven hundred fifty-six thousand, six hundred forty-one".