86911500 has 96 divisors (see below), whose sum is σ = 272615616. Its totient is φ = 21388800.

The previous prime is 86911493. The next prime is 86911501. The reversal of 86911500 is 511968.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86911501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17272 + ... + 21728.

It is an arithmetic number, because the mean of its divisors is an integer number (2839746).

Almost surely, 2^86911500 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 86911500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136307808).

86911500 is an abundant number, since it is smaller than the sum of its proper divisors (185704116).

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

86911500 is a wasteful number, since it uses less digits than its factorization.

86911500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4492 (or 4480 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 86911500 is about 9322.6337480349. The cubic root of 86911500 is about 442.9544630279.

The spelling of 86911500 in words is "eighty-six million, nine hundred eleven thousand, five hundred".