39117193 has 2 divisors, whose sum is σ = 39117194. Its totient is φ = 39117192.

The previous prime is 39117179. The next prime is 39117217. The reversal of 39117193 is 39171193.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19642624 + 19474569 = 4432^2 + 4413^2 .

It is an emirp because it is prime and its reverse (39171193) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39117193 - 2⁵ = 39117161 is a prime.

It is not a weakly prime, because it can be changed into another prime (39117293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19558596 + 19558597.

It is an arithmetic number, because the mean of its divisors is an integer number (19558597).

Almost surely, 2^39117193 is an apocalyptic number.

It is an amenable number.

39117193 is a deficient number, since it is larger than the sum of its proper divisors (1).

39117193 is an equidigital number, since it uses as much as digits as its factorization.

39117193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5103, while the sum is 34.

The square root of 39117193 is about 6254.3739095132. The cubic root of 39117193 is about 339.4604851767.

The spelling of 39117193 in words is "thirty-nine million, one hundred seventeen thousand, one hundred ninety-three".