86651266 has 8 divisors (see below), whose sum is σ = 139975164. Its totient is φ = 39992880.

The previous prime is 86651239. The next prime is 86651287. The reversal of 86651266 is 66215668.

It can be written as a sum of positive squares in 2 ways, for example, as 84107241 + 2544025 = 9171^2 + 1595^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1666345 + ... + 1666396.

Almost surely, 2^86651266 is an apocalyptic number.

86651266 is a deficient number, since it is larger than the sum of its proper divisors (53323898).

86651266 is a wasteful number, since it uses less digits than its factorization.

86651266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332756.

The product of its digits is 103680, while the sum is 40.

The square root of 86651266 is about 9308.6661772780. Note that the first 3 decimals coincide. The cubic root of 86651266 is about 442.5119168591.

The spelling of 86651266 in words is "eighty-six million, six hundred fifty-one thousand, two hundred sixty-six".