86220266 has 16 divisors (see below), whose sum is σ = 142488288. Its totient is φ = 38802000.

The previous prime is 86220247. The next prime is 86220287. The reversal of 86220266 is 66202268.

It is a super-2 number, since 2×86220266² = 14867868538221512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17180 + ... + 21623.

It is an arithmetic number, because the mean of its divisors is an integer number (8905518).

Almost surely, 2^86220266 is an apocalyptic number.

86220266 is a deficient number, since it is larger than the sum of its proper divisors (56268022).

86220266 is a wasteful number, since it uses less digits than its factorization.

86220266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38917.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 86220266 is about 9285.4868477641. The cubic root of 86220266 is about 441.7770180810. Note that the first 3 decimals are identical.

It can be divided in two parts, 862202 and 66, that added together give a palindrome (862268).

The spelling of 86220266 in words is "eighty-six million, two hundred twenty thousand, two hundred sixty-six".