86106861 has 16 divisors (see below), whose sum is σ = 127857600. Its totient is φ = 57273264.

The previous prime is 86106857. The next prime is 86106893. The reversal of 86106861 is 16860168.

It is not a de Polignac number, because 86106861 - 2² = 86106857 is a prime.

It is a super-2 number, since 2×86106861² = 14828783022546642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86106851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9195 + ... + 16023.

It is an arithmetic number, because the mean of its divisors is an integer number (7991100).

Almost surely, 2^86106861 is an apocalyptic number.

It is an amenable number.

86106861 is a deficient number, since it is larger than the sum of its proper divisors (41750739).

86106861 is a wasteful number, since it uses less digits than its factorization.

86106861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7305 (or 7299 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 86106861 is about 9279.3782658107. The cubic root of 86106861 is about 441.5832442101.

The spelling of 86106861 in words is "eighty-six million, one hundred six thousand, eight hundred sixty-one".