86667212 has 12 divisors (see below), whose sum is σ = 151751040. Its totient is φ = 43309776.

The previous prime is 86667211. The next prime is 86667233. The reversal of 86667212 is 21276668.

It is a happy number.

It is a super-2 number, since 2×86667212² = 15022411271705888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86667211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4118 + ... + 13794.

It is an arithmetic number, because the mean of its divisors is an integer number (12645920).

Almost surely, 2^86667212 is an apocalyptic number.

It is an amenable number.

86667212 is a deficient number, since it is larger than the sum of its proper divisors (65083828).

86667212 is a wasteful number, since it uses less digits than its factorization.

86667212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11920 (or 11918 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 86667212 is about 9309.5226515649. The cubic root of 86667212 is about 442.5390596140.

The spelling of 86667212 in words is "eighty-six million, six hundred sixty-seven thousand, two hundred twelve".