39868193 has 2 divisors, whose sum is σ = 39868194. Its totient is φ = 39868192.

The previous prime is 39868189. The next prime is 39868207. The reversal of 39868193 is 39186893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35916049 + 3952144 = 5993^2 + 1988^2 .

It is a cyclic number.

It is not a de Polignac number, because 39868193 - 2² = 39868189 is a prime.

It is not a weakly prime, because it can be changed into another prime (39868183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19934096 + 19934097.

It is an arithmetic number, because the mean of its divisors is an integer number (19934097).

Almost surely, 2^39868193 is an apocalyptic number.

It is an amenable number.

39868193 is a deficient number, since it is larger than the sum of its proper divisors (1).

39868193 is an equidigital number, since it uses as much as digits as its factorization.

39868193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 47.

The square root of 39868193 is about 6314.1264637319. The cubic root of 39868193 is about 341.6191313074.

The spelling of 39868193 in words is "thirty-nine million, eight hundred sixty-eight thousand, one hundred ninety-three".