86406844 has 12 divisors (see below), whose sum is σ = 154900368. Its totient is φ = 42149600.

The previous prime is 86406841. The next prime is 86406871. The reversal of 86406844 is 44860468.

It is a super-2 number, since 2×86406844² = 14932285380080672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86406797 and 86406806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86406841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263272 + ... + 263599.

It is an arithmetic number, because the mean of its divisors is an integer number (12908364).

Almost surely, 2^86406844 is an apocalyptic number.

It is an amenable number.

86406844 is a deficient number, since it is larger than the sum of its proper divisors (68493524).

86406844 is a wasteful number, since it uses less digits than its factorization.

86406844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526916 (or 526914 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 86406844 is about 9295.5281721912. The cubic root of 86406844 is about 442.0954524507.

The spelling of 86406844 in words is "eighty-six million, four hundred six thousand, eight hundred forty-four".