39020085 has 24 divisors (see below), whose sum is σ = 72838584. Its totient is φ = 19209600.

The previous prime is 39020077. The next prime is 39020087. The reversal of 39020085 is 58002093.

39020085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7569 + 39012516 = 87^2 + 6246^2 .

It is not a de Polignac number, because 39020085 - 2³ = 39020077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39020087) 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 23 ways as a sum of consecutive naturals, for example, 32766 + ... + 33935.

It is an arithmetic number, because the mean of its divisors is an integer number (3034941).

Almost surely, 2^39020085 is an apocalyptic number.

It is an amenable number.

39020085 is a deficient number, since it is larger than the sum of its proper divisors (33818499).

39020085 is a wasteful number, since it uses less digits than its factorization.

39020085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66725 (or 66722 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 39020085 is about 6246.6058783951. The cubic root of 39020085 is about 339.1793501070.

The spelling of 39020085 in words is "thirty-nine million, twenty thousand, eighty-five".