86729841 has 24 divisors (see below), whose sum is σ = 137389824. Its totient is φ = 52284960.

The previous prime is 86729833. The next prime is 86729879. The reversal of 86729841 is 14892768.

It is not a de Polignac number, because 86729841 - 2³ = 86729833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86729821) 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 23 ways as a sum of consecutive naturals, for example, 17280 + ... + 21726.

It is an arithmetic number, because the mean of its divisors is an integer number (5724576).

Almost surely, 2^86729841 is an apocalyptic number.

It is an amenable number.

86729841 is a deficient number, since it is larger than the sum of its proper divisors (50659983).

86729841 is a wasteful number, since it uses less digits than its factorization.

86729841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4661 (or 4658 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 86729841 is about 9312.8857503998. The cubic root of 86729841 is about 442.6456324253.

It can be divided in two parts, 86 and 729841, that added together give a palindrome (729927).

The spelling of 86729841 in words is "eighty-six million, seven hundred twenty-nine thousand, eight hundred forty-one".