39085913 has 4 divisors (see below), whose sum is σ = 39098640. Its totient is φ = 39073188.

The previous prime is 39085883. The next prime is 39085919. The reversal of 39085913 is 31958093.

39085913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31958093 = 151 ⋅211643.

It is a cyclic number.

It is not a de Polignac number, because 39085913 - 2²² = 34891609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39085919) 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 in 3 ways as a sum of consecutive naturals, for example, 1406 + ... + 8952.

It is an arithmetic number, because the mean of its divisors is an integer number (9774660).

Almost surely, 2^39085913 is an apocalyptic number.

It is an amenable number.

39085913 is a deficient number, since it is larger than the sum of its proper divisors (12727).

39085913 is an equidigital number, since it uses as much as digits as its factorization.

39085913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12726.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 39085913 is about 6251.8727594218. The cubic root of 39085913 is about 339.3699780388.

The spelling of 39085913 in words is "thirty-nine million, eighty-five thousand, nine hundred thirteen".