86313631 has 4 divisors (see below), whose sum is σ = 86352264. Its totient is φ = 86275000.

The previous prime is 86313613. The next prime is 86313649. The reversal of 86313631 is 13631368.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (86313613) and next prime (86313649).

It is a cyclic number.

It is not a de Polignac number, because 86313631 - 2¹¹ = 86311583 is a prime.

It is a super-2 number, since 2×86313631² = 14900085792808322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86313593 and 86313602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86313671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15745 + ... + 20506.

It is an arithmetic number, because the mean of its divisors is an integer number (21588066).

Almost surely, 2^86313631 is an apocalyptic number.

86313631 is a deficient number, since it is larger than the sum of its proper divisors (38633).

86313631 is a wasteful number, since it uses less digits than its factorization.

86313631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38632.

The product of its digits is 7776, while the sum is 31.

The square root of 86313631 is about 9290.5129567748. The cubic root of 86313631 is about 441.9364223371.

Adding to 86313631 its reverse (13631368), we get a palindrome (99944999).

The spelling of 86313631 in words is "eighty-six million, three hundred thirteen thousand, six hundred thirty-one".