86466658 has 16 divisors (see below), whose sum is σ = 137840184. Its totient is φ = 40538880.

The previous prime is 86466647. The next prime is 86466659. The reversal of 86466658 is 85666468.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 76335169 + 10131489 = 8737^2 + 3183^2 .

It is not an unprimeable number, because it can be changed into a prime (86466659) 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 7 ways as a sum of consecutive naturals, for example, 4828 + ... + 14008.

Almost surely, 2^86466658 is an apocalyptic number.

86466658 is a deficient number, since it is larger than the sum of its proper divisors (51373526).

86466658 is a wasteful number, since it uses less digits than its factorization.

86466658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9477.

The product of its digits is 1658880, while the sum is 49.

The square root of 86466658 is about 9298.7449690805. The cubic root of 86466658 is about 442.1974405062.

The spelling of 86466658 in words is "eighty-six million, four hundred sixty-six thousand, six hundred fifty-eight".