86808220 has 12 divisors (see below), whose sum is σ = 182297304. Its totient is φ = 34723280.

The previous prime is 86808209. The next prime is 86808229. The reversal of 86808220 is 2280868.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86808229) 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 3 ways as a sum of consecutive naturals, for example, 2170186 + ... + 2170225.

It is an arithmetic number, because the mean of its divisors is an integer number (15191442).

Almost surely, 2^86808220 is an apocalyptic number.

It is an amenable number.

86808220 is an abundant number, since it is smaller than the sum of its proper divisors (95489084).

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

86808220 is a wasteful number, since it uses less digits than its factorization.

86808220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340420 (or 4340418 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 86808220 is about 9317.0928942455. The cubic root of 86808220 is about 442.7789340113.

It can be divided in two parts, 8680 and 8220, that added together give a square (16900 = 130²).

The spelling of 86808220 in words is "eighty-six million, eight hundred eight thousand, two hundred twenty".