86989410 has 128 divisors (see below), whose sum is σ = 252518400. Its totient is φ = 21228480.

The previous prime is 86989403. The next prime is 86989411. The reversal of 86989410 is 1498968.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86989411) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 158757 + ... + 159303.

It is an arithmetic number, because the mean of its divisors is an integer number (1972800).

Almost surely, 2^86989410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86989410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126259200).

86989410 is an abundant number, since it is smaller than the sum of its proper divisors (165528990).

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

86989410 is a wasteful number, since it uses less digits than its factorization.

86989410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 86989410 is about 9326.8113522254. The cubic root of 86989410 is about 443.0867825914.

The spelling of 86989410 in words is "eighty-six million, nine hundred eighty-nine thousand, four hundred ten".