86668510 has 16 divisors (see below), whose sum is σ = 156583872. Its totient is φ = 34538400.

The previous prime is 86668489. The next prime is 86668511. The reversal of 86668510 is 1586668.

It is a happy number.

It is a super-2 number, since 2×86668510² = 15022861251240200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86668511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13281 + ... + 18700.

It is an arithmetic number, because the mean of its divisors is an integer number (9786492).

Almost surely, 2^86668510 is an apocalyptic number.

86668510 is a deficient number, since it is larger than the sum of its proper divisors (69915362).

86668510 is a wasteful number, since it uses less digits than its factorization.

86668510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32259.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 86668510 is about 9309.5923648675. The cubic root of 86668510 is about 442.5412688802.

It can be divided in two parts, 86668 and 510, that added together give a palindrome (87178).

The spelling of 86668510 in words is "eighty-six million, six hundred sixty-eight thousand, five hundred ten".