39585285 has 12 divisors (see below), whose sum is σ = 68614572. Its totient is φ = 21112128.

The previous prime is 39585281. The next prime is 39585349. The reversal of 39585285 is 58258593.

It can be written as a sum of positive squares in 2 ways, for example, as 5116644 + 34468641 = 2262^2 + 5871^2 .

It is not a de Polignac number, because 39585285 - 2² = 39585281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 879673 = 39585285 / (3 + 9 + 5 + 8 + 5 + 2 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 39585285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39585281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 439792 + ... + 439881.

It is an arithmetic number, because the mean of its divisors is an integer number (5717881).

Almost surely, 2^39585285 is an apocalyptic number.

It is an amenable number.

39585285 is a deficient number, since it is larger than the sum of its proper divisors (29029287).

39585285 is a wasteful number, since it uses less digits than its factorization.

39585285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879684 (or 879681 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 39585285 is about 6291.6837968862. The cubic root of 39585285 is about 340.8091598494.

The spelling of 39585285 in words is "thirty-nine million, five hundred eighty-five thousand, two hundred eighty-five".