86687328 has 96 divisors (see below), whose sum is σ = 280094976. Its totient is φ = 22860288.

The previous prime is 86687327. The next prime is 86687339. The reversal of 86687328 is 82378668.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86687323) 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, 3775 + ... + 13697.

It is an arithmetic number, because the mean of its divisors is an integer number (2917656).

Almost surely, 2^86687328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86687328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140047488).

86687328 is an abundant number, since it is smaller than the sum of its proper divisors (193407648).

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

86687328 is a wasteful number, since it uses less digits than its factorization.

86687328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9956 (or 9948 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 86687328 is about 9310.6029879917. The cubic root of 86687328 is about 442.5732956565.

The spelling of 86687328 in words is "eighty-six million, six hundred eighty-seven thousand, three hundred twenty-eight".