86889660 has 288 divisors, whose sum is σ = 309899520. Its totient is φ = 17971200.

The previous prime is 86889659. The next prime is 86889689. The reversal of 86889660 is 6698868.

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 845 × 123 × 836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2119240 + ... + 2119280.

It is an arithmetic number, because the mean of its divisors is an integer number (1076040).

Almost surely, 2^86889660 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 86889660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154949760).

86889660 is an abundant number, since it is smaller than the sum of its proper divisors (223009860).

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

86889660 is a wasteful number, since it uses less digits than its factorization.

86889660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The square root of 86889660 is about 9321.4623316302. The cubic root of 86889660 is about 442.9173565616.

The spelling of 86889660 in words is "eighty-six million, eight hundred eighty-nine thousand, six hundred sixty".