86885643 has 16 divisors (see below), whose sum is σ = 124929056. Its totient is φ = 53395200.

The previous prime is 86885641. The next prime is 86885647. The reversal of 86885643 is 34658868.

It is not a de Polignac number, because 86885643 - 2¹ = 86885641 is a prime.

It is a super-2 number, since 2×86885643² = 15098229919046898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86885592 and 86885601.

It is not an unprimeable number, because it can be changed into a prime (86885641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47343 + ... + 49143.

It is an arithmetic number, because the mean of its divisors is an integer number (7808066).

Almost surely, 2^86885643 is an apocalyptic number.

86885643 is a deficient number, since it is larger than the sum of its proper divisors (38043413).

86885643 is a wasteful number, since it uses less digits than its factorization.

86885643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054.

The product of its digits is 1105920, while the sum is 48.

The square root of 86885643 is about 9321.2468586558. The cubic root of 86885643 is about 442.9105309453.

The spelling of 86885643 in words is "eighty-six million, eight hundred eighty-five thousand, six hundred forty-three".