38116217 has 2 divisors, whose sum is σ = 38116218. Its totient is φ = 38116216.

The previous prime is 38116187. The next prime is 38116219. The reversal of 38116217 is 71261183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34445161 + 3671056 = 5869^2 + 1916^2 .

It is a cyclic number.

It is not a de Polignac number, because 38116217 - 2¹² = 38112121 is a prime.

Together with 38116219, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38116217.

It is not a weakly prime, because it can be changed into another prime (38116219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19058108 + 19058109.

It is an arithmetic number, because the mean of its divisors is an integer number (19058109).

Almost surely, 2^38116217 is an apocalyptic number.

It is an amenable number.

38116217 is a deficient number, since it is larger than the sum of its proper divisors (1).

38116217 is an equidigital number, since it uses as much as digits as its factorization.

38116217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 29.

The square root of 38116217 is about 6173.8332500967. The cubic root of 38116217 is about 336.5399275695.

The spelling of 38116217 in words is "thirty-eight million, one hundred sixteen thousand, two hundred seventeen".