86005031 has 8 divisors (see below), whose sum is σ = 100577664. Its totient is φ = 72003960.

The previous prime is 86005021. The next prime is 86005081. The reversal of 86005031 is 13050068.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86005031 - 2⁶ = 86004967 is a prime.

It is a super-2 number, since 2×86005031² = 14793730714621922, which contains 22 as substring.

It is a Duffinian number.

86005031 is a modest number, since divided by 5031 gives 86 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 86004988 and 86005006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86005021) 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 7 ways as a sum of consecutive naturals, for example, 142565 + ... + 143166.

It is an arithmetic number, because the mean of its divisors is an integer number (12572208).

Almost surely, 2^86005031 is an apocalyptic number.

86005031 is a deficient number, since it is larger than the sum of its proper divisors (14572633).

86005031 is a wasteful number, since it uses less digits than its factorization.

86005031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285781.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 86005031 is about 9273.8897448697. The cubic root of 86005031 is about 441.4091033861.

Adding to 86005031 its reverse (13050068), we get a palindrome (99055099).

It can be divided in two parts, 8600 and 5031, that added together give a palindrome (13631).

The spelling of 86005031 in words is "eighty-six million, five thousand, thirty-one".