86995720 has 64 divisors (see below), whose sum is σ = 226281600. Its totient is φ = 29483520.

The previous prime is 86995717. The next prime is 86995721. The reversal of 86995720 is 2759968.

It is not an unprimeable number, because it can be changed into a prime (86995721) 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, 23175 + ... + 26665.

It is an arithmetic number, because the mean of its divisors is an integer number (3535650).

Almost surely, 2^86995720 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 86995720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113140800).

86995720 is an abundant number, since it is smaller than the sum of its proper divisors (139285880).

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

86995720 is a wasteful number, since it uses less digits than its factorization.

86995720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598 (or 3594 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 86995720 is about 9327.1496181845. The cubic root of 86995720 is about 443.0974958112.

The spelling of 86995720 in words is "eighty-six million, nine hundred ninety-five thousand, seven hundred twenty".