83860385 has 16 divisors (see below), whose sum is σ = 115468416. Its totient is φ = 57274368.

The previous prime is 83860333. The next prime is 83860393. The reversal of 83860385 is 58306838.

It is a cyclic number.

It is not a de Polignac number, because 83860385 - 2¹⁶ = 83794849 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4334 + ... + 13656.

It is an arithmetic number, because the mean of its divisors is an integer number (7216776).

Almost surely, 2^83860385 is an apocalyptic number.

It is an amenable number.

83860385 is a deficient number, since it is larger than the sum of its proper divisors (31608031).

83860385 is a wasteful number, since it uses less digits than its factorization.

83860385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9592.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 83860385 is about 9157.5315997271. The cubic root of 83860385 is about 437.7091419109.

The spelling of 83860385 in words is "eighty-three million, eight hundred sixty thousand, three hundred eighty-five".