86513420 has 72 divisors (see below), whose sum is σ = 216360144. Its totient is φ = 28957824.

The previous prime is 86513407. The next prime is 86513431. The reversal of 86513420 is 2431568.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41114 + ... + 43166.

It is an arithmetic number, because the mean of its divisors is an integer number (3005002).

Almost surely, 2^86513420 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 86513420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108180072).

86513420 is an abundant number, since it is smaller than the sum of its proper divisors (129846724).

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

86513420 is a wasteful number, since it uses less digits than its factorization.

86513420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119 (or 2110 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 86513420 is about 9301.2590545582. The cubic root of 86513420 is about 442.2771410162.

Adding to 86513420 its reverse (2431568), we get a palindrome (88944988).

The spelling of 86513420 in words is "eighty-six million, five hundred thirteen thousand, four hundred twenty".