39065979 has 4 divisors (see below), whose sum is σ = 52087976. Its totient is φ = 26043984.

The previous prime is 39065963. The next prime is 39065993. The reversal of 39065979 is 97956093.

It is a happy number.

39065979 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.

It is not a de Polignac number, because 39065979 - 2⁴ = 39065963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39065909) 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, 6510994 + ... + 6510999.

It is an arithmetic number, because the mean of its divisors is an integer number (13021994).

Almost surely, 2^39065979 is an apocalyptic number.

39065979 is a deficient number, since it is larger than the sum of its proper divisors (13021997).

39065979 is a wasteful number, since it uses less digits than its factorization.

39065979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13021996.

The product of its (nonzero) digits is 459270, while the sum is 48.

The square root of 39065979 is about 6250.2783138033. The cubic root of 39065979 is about 339.3122747981.

The spelling of 39065979 in words is "thirty-nine million, sixty-five thousand, nine hundred seventy-nine".