86913816 has 72 divisors (see below), whose sum is σ = 240221940. Its totient is φ = 26185280.

The previous prime is 86913797. The next prime is 86913817. The reversal of 86913816 is 61831968.

It is a super-2 number, since 2×86913816² = 15108022823363712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86913817) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 502306 + ... + 502478.

Almost surely, 2^86913816 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 86913816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120110970).

86913816 is an abundant number, since it is smaller than the sum of its proper divisors (153308124).

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

86913816 is a wasteful number, since it uses less digits than its factorization.

86913816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 189 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 86913816 is about 9322.7579610328. The cubic root of 86913816 is about 442.9583975798.

The spelling of 86913816 in words is "eighty-six million, nine hundred thirteen thousand, eight hundred sixteen".