938600081 has 2 divisors, whose sum is σ = 938600082. Its totient is φ = 938600080.

The previous prime is 938599967. The next prime is 938600111. The reversal of 938600081 is 180006839.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 538240000 + 400360081 = 23200^2 + 20009^2 .

It is a cyclic number.

It is not a de Polignac number, because 938600081 - 2¹⁴ = 938583697 is a prime.

It is a super-2 number, since 2×938600081² = 1761940224106413122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (938600681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469300040 + 469300041.

It is an arithmetic number, because the mean of its divisors is an integer number (469300041).

Almost surely, 2^938600081 is an apocalyptic number.

It is an amenable number.

938600081 is a deficient number, since it is larger than the sum of its proper divisors (1).

938600081 is an equidigital number, since it uses as much as digits as its factorization.

938600081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 938600081 is about 30636.5807654836. The cubic root of 938600081 is about 979.0995759007.

The spelling of 938600081 in words is "nine hundred thirty-eight million, six hundred thousand, eighty-one".