86263220 has 12 divisors (see below), whose sum is σ = 181152804. Its totient is φ = 34505280.

The previous prime is 86263213. The next prime is 86263241. The reversal of 86263220 is 2236268.

It can be written as a sum of positive squares in 2 ways, for example, as 62663056 + 23600164 = 7916^2 + 4858^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2156561 + ... + 2156600.

It is an arithmetic number, because the mean of its divisors is an integer number (15096067).

Almost surely, 2^86263220 is an apocalyptic number.

It is an amenable number.

86263220 is an abundant number, since it is smaller than the sum of its proper divisors (94889584).

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

86263220 is a wasteful number, since it uses less digits than its factorization.

86263220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313170 (or 4313168 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 86263220 is about 9287.7995241069. The cubic root of 86263220 is about 441.8503687388.

Adding to 86263220 its reverse (2236268), we get a palindrome (88499488).

The spelling of 86263220 in words is "eighty-six million, two hundred sixty-three thousand, two hundred twenty".