86041780 has 48 divisors (see below), whose sum is σ = 201942720. Its totient is φ = 30521600.

The previous prime is 86041757. The next prime is 86041783. The reversal of 86041780 is 8714068.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86041783) 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 15 ways as a sum of consecutive naturals, for example, 4251 + ... + 13789.

It is an arithmetic number, because the mean of its divisors is an integer number (4207140).

Almost surely, 2^86041780 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 86041780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100971360).

86041780 is an abundant number, since it is smaller than the sum of its proper divisors (115900940).

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

86041780 is a wasteful number, since it uses less digits than its factorization.

86041780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9600 (or 9598 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 86041780 is about 9275.8708486050. The cubic root of 86041780 is about 441.4719641788.

The spelling of 86041780 in words is "eighty-six million, forty-one thousand, seven hundred eighty".