86820522 has 16 divisors (see below), whose sum is σ = 179242752. Its totient is φ = 28006560.

The previous prime is 86820497. The next prime is 86820523. The reversal of 86820522 is 22502868.

It is not an unprimeable number, because it can be changed into a prime (86820523) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 233203 + ... + 233574.

It is an arithmetic number, because the mean of its divisors is an integer number (11202672).

Almost surely, 2^86820522 is an apocalyptic number.

86820522 is an abundant number, since it is smaller than the sum of its proper divisors (92422230).

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

86820522 is a wasteful number, since it uses less digits than its factorization.

86820522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466813.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 86820522 is about 9317.7530553240. The cubic root of 86820522 is about 442.7998491165.

The spelling of 86820522 in words is "eighty-six million, eight hundred twenty thousand, five hundred twenty-two".