86116731 has 4 divisors (see below), whose sum is σ = 114822312. Its totient is φ = 57411152.

The previous prime is 86116717. The next prime is 86116739. The reversal of 86116731 is 13761168.

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

It is a cyclic number.

It is not a de Polignac number, because 86116731 - 2⁵ = 86116699 is a prime.

It is a super-2 number, since 2×86116731² = 14832182716252722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86116692 and 86116701.

It is not an unprimeable number, because it can be changed into a prime (86116739) 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, 14352786 + ... + 14352791.

It is an arithmetic number, because the mean of its divisors is an integer number (28705578).

Almost surely, 2^86116731 is an apocalyptic number.

86116731 is a deficient number, since it is larger than the sum of its proper divisors (28705581).

86116731 is a wasteful number, since it uses less digits than its factorization.

86116731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28705580.

The product of its digits is 6048, while the sum is 33.

The square root of 86116731 is about 9279.9100749953. The cubic root of 86116731 is about 441.6001157270.

Adding to 86116731 its reverse (13761168), we get a palindrome (99877899).

The spelling of 86116731 in words is "eighty-six million, one hundred sixteen thousand, seven hundred thirty-one".