86241231 has 6 divisors (see below), whose sum is σ = 124570680. Its totient is φ = 57494148.

The previous prime is 86241217. The next prime is 86241241. The reversal of 86241231 is 13214268.

86241231 is a `hidden beast` number, since 8 + 624 + 1 + 2 + 31 = 666.

It is not a de Polignac number, because 86241231 - 2⁶ = 86241167 is a prime.

It is a super-2 number, since 2×86241231² = 14875099848790722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86241195 and 86241204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86241241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4791171 + ... + 4791188.

It is an arithmetic number, because the mean of its divisors is an integer number (20761780).

Almost surely, 2^86241231 is an apocalyptic number.

86241231 is a deficient number, since it is larger than the sum of its proper divisors (38329449).

86241231 is a wasteful number, since it uses less digits than its factorization.

86241231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9582365 (or 9582362 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 86241231 is about 9286.6156914131. The cubic root of 86241231 is about 441.8128221327.

Adding to 86241231 its reverse (13214268), we get a palindrome (99455499).

The spelling of 86241231 in words is "eighty-six million, two hundred forty-one thousand, two hundred thirty-one".