86816031 has 8 divisors (see below), whose sum is σ = 117385344. Its totient is φ = 57062040.

The previous prime is 86816021. The next prime is 86816047. The reversal of 86816031 is 13061868.

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

It is not a de Polignac number, because 86816031 - 2¹⁹ = 86291743 is a prime.

It is a super-2 number, since 2×86816031² = 15074046477185922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86815983 and 86816001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86816021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203581 + ... + 204006.

It is an arithmetic number, because the mean of its divisors is an integer number (14673168).

Almost surely, 2^86816031 is an apocalyptic number.

86816031 is a deficient number, since it is larger than the sum of its proper divisors (30569313).

86816031 is a wasteful number, since it uses less digits than its factorization.

86816031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407661.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 86816031 is about 9317.5120606308. The cubic root of 86816031 is about 442.7922140230.

Adding to 86816031 its reverse (13061868), we get a palindrome (99877899).

The spelling of 86816031 in words is "eighty-six million, eight hundred sixteen thousand, thirty-one".