86643366 has 32 divisors (see below), whose sum is σ = 177936000. Its totient is φ = 28111104.

The previous prime is 86643341. The next prime is 86643367. The reversal of 86643366 is 66334668.

86643366 is nontrivially palindromic in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86643367) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 128406 + ... + 129078.

It is an arithmetic number, because the mean of its divisors is an integer number (5560500).

Almost surely, 2^86643366 is an apocalyptic number.

86643366 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

86643366 is an abundant number, since it is smaller than the sum of its proper divisors (91292634).

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

86643366 is a wasteful number, since it uses less digits than its factorization.

86643366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220.

The product of its digits is 373248, while the sum is 42.

The square root of 86643366 is about 9308.2418318391. The cubic root of 86643366 is about 442.4984685063.

The spelling of 86643366 in words is "eighty-six million, six hundred forty-three thousand, three hundred sixty-six".