938710681 has 2 divisors, whose sum is σ = 938710682. Its totient is φ = 938710680.

The previous prime is 938710631. The next prime is 938710699. The reversal of 938710681 is 186017839.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 918090000 + 20620681 = 30300^2 + 4541^2 .

It is a cyclic number.

It is not a de Polignac number, because 938710681 - 2¹³ = 938702489 is a prime.

It is a super-2 number, since 2×938710681² = 1762355485246967522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (938710631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469355340 + 469355341.

It is an arithmetic number, because the mean of its divisors is an integer number (469355341).

Almost surely, 2^938710681 is an apocalyptic number.

It is an amenable number.

938710681 is a deficient number, since it is larger than the sum of its proper divisors (1).

938710681 is an equidigital number, since it uses as much as digits as its factorization.

938710681 is an odious number, because the sum of its binary digits is odd.

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

The square root of 938710681 is about 30638.3857440303. The cubic root of 938710681 is about 979.1380318105.

The spelling of 938710681 in words is "nine hundred thirty-eight million, seven hundred ten thousand, six hundred eighty-one".