86697312 has 96 divisors (see below), whose sum is σ = 247468032. Its totient is φ = 26417664.

The previous prime is 86697311. The next prime is 86697349. The reversal of 86697312 is 21379668.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86697311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158223 + ... + 158769.

It is an arithmetic number, because the mean of its divisors is an integer number (2577792).

Almost surely, 2^86697312 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 86697312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123734016).

86697312 is an abundant number, since it is smaller than the sum of its proper divisors (160770720).

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

86697312 is a wasteful number, since it uses less digits than its factorization.

86697312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 692 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 86697312 is about 9311.1391354656. The cubic root of 86697312 is about 442.5902857682.

The spelling of 86697312 in words is "eighty-six million, six hundred ninety-seven thousand, three hundred twelve".