86651811 has 12 divisors (see below), whose sum is σ = 125245120. Its totient is φ = 57730320.

The previous prime is 86651809. The next prime is 86651843. The reversal of 86651811 is 11815668.

It is not a de Polignac number, because 86651811 - 2¹ = 86651809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86651801) 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 11 ways as a sum of consecutive naturals, for example, 22701 + ... + 26241.

Almost surely, 2^86651811 is an apocalyptic number.

86651811 is a deficient number, since it is larger than the sum of its proper divisors (38593309).

86651811 is a wasteful number, since it uses less digits than its factorization.

86651811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6266 (or 6263 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 86651811 is about 9308.6954510286. The cubic root of 86651811 is about 442.5128445951.

The spelling of 86651811 in words is "eighty-six million, six hundred fifty-one thousand, eight hundred eleven".