86221722 has 32 divisors (see below), whose sum is σ = 182984832. Its totient is φ = 26991104.

The previous prime is 86221721. The next prime is 86221741. The reversal of 86221722 is 22712268.

It is a self number, because there is not a number n which added to its sum of digits gives 86221722.

It is not an unprimeable number, because it can be changed into a prime (86221721) 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 15 ways as a sum of consecutive naturals, for example, 89998 + ... + 90950.

It is an arithmetic number, because the mean of its divisors is an integer number (5718276).

Almost surely, 2^86221722 is an apocalyptic number.

86221722 is an abundant number, since it is smaller than the sum of its proper divisors (96763110).

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

86221722 is a wasteful number, since it uses less digits than its factorization.

86221722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862.

The product of its digits is 5376, while the sum is 30.

The square root of 86221722 is about 9285.5652493534. The cubic root of 86221722 is about 441.7795048270.

The spelling of 86221722 in words is "eighty-six million, two hundred twenty-one thousand, seven hundred twenty-two".