86018861 has 16 divisors (see below), whose sum is σ = 93985920. Its totient is φ = 78405120.

The previous prime is 86018857. The next prime is 86018869. The reversal of 86018861 is 16881068.

It is not a de Polignac number, because 86018861 - 2² = 86018857 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 (86018869) 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 15 ways as a sum of consecutive naturals, for example, 116030 + ... + 116768.

It is an arithmetic number, because the mean of its divisors is an integer number (5874120).

Almost surely, 2^86018861 is an apocalyptic number.

It is an amenable number.

86018861 is a deficient number, since it is larger than the sum of its proper divisors (7967059).

86018861 is a wasteful number, since it uses less digits than its factorization.

86018861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 86018861 is about 9274.6353567135. The cubic root of 86018861 is about 441.4327623148.

The spelling of 86018861 in words is "eighty-six million, eighteen thousand, eight hundred sixty-one".