39386693 has 2 divisors, whose sum is σ = 39386694. Its totient is φ = 39386692.

The previous prime is 39386657. The next prime is 39386707. The reversal of 39386693 is 39668393.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27227524 + 12159169 = 5218^2 + 3487^2 .

It is a cyclic number.

It is not a de Polignac number, because 39386693 - 2⁶ = 39386629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39386653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19693346 + 19693347.

It is an arithmetic number, because the mean of its divisors is an integer number (19693347).

Almost surely, 2^39386693 is an apocalyptic number.

It is an amenable number.

39386693 is a deficient number, since it is larger than the sum of its proper divisors (1).

39386693 is an equidigital number, since it uses as much as digits as its factorization.

39386693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 47.

The square root of 39386693 is about 6275.8818503856. The cubic root of 39386693 is about 340.2382787606.

The spelling of 39386693 in words is "thirty-nine million, three hundred eighty-six thousand, six hundred ninety-three".