83707685 has 8 divisors (see below), whose sum is σ = 101183256. Its totient is φ = 66476800.

The previous prime is 83707661. The next prime is 83707693. The reversal of 83707685 is 58670738.

It can be written as a sum of positive squares in 4 ways, for example, as 34833604 + 48874081 = 5902^2 + 6991^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83707685 - 2⁶ = 83707621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60416 + ... + 61785.

It is an arithmetic number, because the mean of its divisors is an integer number (12647907).

Almost surely, 2^83707685 is an apocalyptic number.

It is an amenable number.

83707685 is a deficient number, since it is larger than the sum of its proper divisors (17475571).

83707685 is a wasteful number, since it uses less digits than its factorization.

83707685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122343.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 83707685 is about 9149.1904013415. The cubic root of 83707685 is about 437.4433080282.

The spelling of 83707685 in words is "eighty-three million, seven hundred seven thousand, six hundred eighty-five".