85861853 has 8 divisors (see below), whose sum is σ = 107048640. Its totient is φ = 66905280.

The previous prime is 85861843. The next prime is 85861877. The reversal of 85861853 is 35816858.

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

It is a cyclic number.

It is not a de Polignac number, because 85861853 - 2¹² = 85857757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85861843) 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, 557468 + ... + 557621.

It is an arithmetic number, because the mean of its divisors is an integer number (13381080).

Almost surely, 2^85861853 is an apocalyptic number.

It is an amenable number.

85861853 is a deficient number, since it is larger than the sum of its proper divisors (21186787).

85861853 is a wasteful number, since it uses less digits than its factorization.

85861853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115107.

The product of its digits is 230400, while the sum is 44.

The square root of 85861853 is about 9266.1671148323. The cubic root of 85861853 is about 441.1640201415.

The spelling of 85861853 in words is "eighty-five million, eight hundred sixty-one thousand, eight hundred fifty-three".