39000197 has 2 divisors, whose sum is σ = 39000198. Its totient is φ = 39000196.

The previous prime is 39000191. The next prime is 39000223. The reversal of 39000197 is 79100093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38925121 + 75076 = 6239^2 + 274^2 .

It is a cyclic number.

It is not a de Polignac number, because 39000197 - 2²⁰ = 37951621 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39000191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19500098 + 19500099.

It is an arithmetic number, because the mean of its divisors is an integer number (19500099).

Almost surely, 2^39000197 is an apocalyptic number.

It is an amenable number.

39000197 is a deficient number, since it is larger than the sum of its proper divisors (1).

39000197 is an equidigital number, since it uses as much as digits as its factorization.

39000197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 39000197 is about 6245.0137710016. The cubic root of 39000197 is about 339.1217152993.

The spelling of 39000197 in words is "thirty-nine million, one hundred ninety-seven", and thus it is an aban number.