86731896 has 64 divisors (see below), whose sum is σ = 229547520. Its totient is φ = 27251840.

The previous prime is 86731891. The next prime is 86731921. The reversal of 86731896 is 69813768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86731891) 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, 38086 + ... + 40298.

It is an arithmetic number, because the mean of its divisors is an integer number (3586680).

Almost surely, 2^86731896 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 86731896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114773760).

86731896 is an abundant number, since it is smaller than the sum of its proper divisors (142815624).

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

86731896 is a wasteful number, since it uses less digits than its factorization.

86731896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316 (or 2312 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 86731896 is about 9312.9960807465. The cubic root of 86731896 is about 442.6491284523.

The spelling of 86731896 in words is "eighty-six million, seven hundred thirty-one thousand, eight hundred ninety-six".