86240212 has 6 divisors (see below), whose sum is σ = 150920378. Its totient is φ = 43120104.

The previous prime is 86240197. The next prime is 86240213. The reversal of 86240212 is 21204268.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 79459396 + 6780816 = 8914^2 + 2604^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86240213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10780023 + ... + 10780030.

Almost surely, 2^86240212 is an apocalyptic number.

It is an amenable number.

86240212 is a deficient number, since it is larger than the sum of its proper divisors (64680166).

86240212 is a wasteful number, since it uses less digits than its factorization.

86240212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21560057 (or 21560055 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 86240212 is about 9286.5608273461. The cubic root of 86240212 is about 441.8110820175.

The spelling of 86240212 in words is "eighty-six million, two hundred forty thousand, two hundred twelve".