3939397585 has 16 divisors (see below), whose sum is σ = 5110574400. Its totient is φ = 2904952896.

The previous prime is 3939397541. The next prime is 3939397601. The reversal of 3939397585 is 5857939393.

It is a cyclic number.

It is not a de Polignac number, because 3939397585 - 2¹⁹ = 3938873297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556855 + ... + 563884.

It is an arithmetic number, because the mean of its divisors is an integer number (319410900).

Almost surely, 2^3939397585 is an apocalyptic number.

It is an amenable number.

3939397585 is a deficient number, since it is larger than the sum of its proper divisors (1171176815).

3939397585 is a wasteful number, since it uses less digits than its factorization.

3939397585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120800.

The product of its digits is 27556200, while the sum is 61.

The square root of 3939397585 is about 62764.6204879787. The cubic root of 3939397585 is about 1579.3435270186.

The spelling of 3939397585 in words is "three billion, nine hundred thirty-nine million, three hundred ninety-seven thousand, five hundred eighty-five".