86822538 has 16 divisors (see below), whose sum is σ = 189431136. Its totient is φ = 26309840.

The previous prime is 86822531. The next prime is 86822551. The reversal of 86822538 is 83522868.

It is a super-2 number, since 2×86822538² = 15076306209522888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86822538.

It is not an unprimeable number, because it can be changed into a prime (86822531) 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, 657681 + ... + 657812.

It is an arithmetic number, because the mean of its divisors is an integer number (11839446).

Almost surely, 2^86822538 is an apocalyptic number.

86822538 is an abundant number, since it is smaller than the sum of its proper divisors (102608598).

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

86822538 is a wasteful number, since it uses less digits than its factorization.

86822538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315509.

The product of its digits is 184320, while the sum is 42.

The square root of 86822538 is about 9317.8612352836. The cubic root of 86822538 is about 442.8032764075.

The spelling of 86822538 in words is "eighty-six million, eight hundred twenty-two thousand, five hundred thirty-eight".