83858585 has 8 divisors (see below), whose sum is σ = 100959936. Its totient is φ = 66867120.

The previous prime is 83858581. The next prime is 83858611. The reversal of 83858585 is 58585838.

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

It is not a de Polignac number, because 83858585 - 2² = 83858581 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83858581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25781 + ... + 28850.

It is an arithmetic number, because the mean of its divisors is an integer number (12619992).

Almost surely, 2^83858585 is an apocalyptic number.

It is an amenable number.

83858585 is a deficient number, since it is larger than the sum of its proper divisors (17101351).

83858585 is a wasteful number, since it uses less digits than its factorization.

83858585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54943.

The product of its digits is 1536000, while the sum is 50.

The square root of 83858585 is about 9157.4333194406. The cubic root of 83858585 is about 437.7060101895.

The spelling of 83858585 in words is "eighty-three million, eight hundred fifty-eight thousand, five hundred eighty-five".