86729872 has 20 divisors (see below), whose sum is σ = 175345920. Its totient is φ = 41479328.

The previous prime is 86729833. The next prime is 86729879. The reversal of 86729872 is 27892768.

It is not an unprimeable number, because it can be changed into a prime (86729879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117472 + ... + 118207.

It is an arithmetic number, because the mean of its divisors is an integer number (8767296).

Almost surely, 2^86729872 is an apocalyptic number.

It is an amenable number.

86729872 is an abundant number, since it is smaller than the sum of its proper divisors (88616048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86729872 is a wasteful number, since it uses less digits than its factorization.

86729872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235710 (or 235704 counting only the distinct ones).

The product of its digits is 677376, while the sum is 49.

The square root of 86729872 is about 9312.8874147603. The cubic root of 86729872 is about 442.6456851638.

The spelling of 86729872 in words is "eighty-six million, seven hundred twenty-nine thousand, eight hundred seventy-two".