86418261 has 12 divisors (see below), whose sum is σ = 127729888. Its totient is φ = 56272104.

The previous prime is 86418253. The next prime is 86418263. The reversal of 86418261 is 16281468.

86418261 is a `hidden beast` number, since 8 + 641 + 8 + 2 + 6 + 1 = 666.

It is not a de Polignac number, because 86418261 - 2³ = 86418253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86418263) 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, 111265 + ... + 112038.

Almost surely, 2^86418261 is an apocalyptic number.

It is an amenable number.

86418261 is a deficient number, since it is larger than the sum of its proper divisors (41311627).

86418261 is a wasteful number, since it uses less digits than its factorization.

86418261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223352 (or 223349 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 86418261 is about 9296.1422644019. The cubic root of 86418261 is about 442.1149230592.

The spelling of 86418261 in words is "eighty-six million, four hundred eighteen thousand, two hundred sixty-one".