86447853 has 24 divisors (see below), whose sum is σ = 132423200. Its totient is φ = 54190944.

The previous prime is 86447849. The next prime is 86447887. The reversal of 86447853 is 35874468.

It is not a de Polignac number, because 86447853 - 2² = 86447849 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86447799 and 86447808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86447813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21951 + ... + 25587.

Almost surely, 2^86447853 is an apocalyptic number.

It is an amenable number.

86447853 is a deficient number, since it is larger than the sum of its proper divisors (45975347).

86447853 is a wasteful number, since it uses less digits than its factorization.

86447853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801 (or 3798 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 86447853 is about 9297.7337561365. The cubic root of 86447853 is about 442.1653814214.

The spelling of 86447853 in words is "eighty-six million, four hundred forty-seven thousand, eight hundred fifty-three".