86666342 has 32 divisors (see below), whose sum is σ = 152285184. Its totient is φ = 36223200.

The previous prime is 86666341. The next prime is 86666381. The reversal of 86666342 is 24366668.

It is a super-2 number, since 2×86666342² = 15022109671321928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86666342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86666341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200867 + ... + 201297.

It is an arithmetic number, because the mean of its divisors is an integer number (4758912).

Almost surely, 2^86666342 is an apocalyptic number.

86666342 is a deficient number, since it is larger than the sum of its proper divisors (65618842).

86666342 is a wasteful number, since it uses less digits than its factorization.

86666342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its digits is 248832, while the sum is 41.

The square root of 86666342 is about 9309.4759250991. The cubic root of 86666342 is about 442.5375788146.

The spelling of 86666342 in words is "eighty-six million, six hundred sixty-six thousand, three hundred forty-two".