86918748 has 72 divisors (see below), whose sum is σ = 246218112. Its totient is φ = 23750496.

The previous prime is 86918719. The next prime is 86918779. The reversal of 86918748 is 84781968.

It is a self number, because there is not a number n which added to its sum of digits gives 86918748.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10311 + ... + 16737.

It is an arithmetic number, because the mean of its divisors is an integer number (3419696).

Almost surely, 2^86918748 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 86918748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123109056).

86918748 is an abundant number, since it is smaller than the sum of its proper divisors (159299364).

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

86918748 is a wasteful number, since it uses less digits than its factorization.

86918748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6471 (or 6462 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The square root of 86918748 is about 9323.0224712804. The cubic root of 86918748 is about 442.9667761076.

The spelling of 86918748 in words is "eighty-six million, nine hundred eighteen thousand, seven hundred forty-eight".