39486709 has 2 divisors, whose sum is σ = 39486710. Its totient is φ = 39486708.

The previous prime is 39486697. The next prime is 39486757. The reversal of 39486709 is 90768493.

39486709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25959025 + 13527684 = 5095^2 + 3678^2 .

It is a cyclic number.

It is not a de Polignac number, because 39486709 - 2⁵ = 39486677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39486409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19743354 + 19743355.

It is an arithmetic number, because the mean of its divisors is an integer number (19743355).

Almost surely, 2^39486709 is an apocalyptic number.

It is an amenable number.

39486709 is a deficient number, since it is larger than the sum of its proper divisors (1).

39486709 is an equidigital number, since it uses as much as digits as its factorization.

39486709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 39486709 is about 6283.8450808402. The cubic root of 39486709 is about 340.5260283003.

The spelling of 39486709 in words is "thirty-nine million, four hundred eighty-six thousand, seven hundred nine".