86143807 has 4 divisors (see below), whose sum is σ = 88472056. Its totient is φ = 83815560.

The previous prime is 86143801. The next prime is 86143817. The reversal of 86143807 is 70834168.

It is a happy number.

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 86143807 - 2⁷ = 86143679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 2328211 = 86143807 / (8 + 6 + 1 + 4 + 3 + 8 + 0 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86143801) 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, 1164069 + ... + 1164142.

It is an arithmetic number, because the mean of its divisors is an integer number (22118014).

Almost surely, 2^86143807 is an apocalyptic number.

86143807 is a deficient number, since it is larger than the sum of its proper divisors (2328249).

86143807 is a wasteful number, since it uses less digits than its factorization.

86143807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328248.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 86143807 is about 9281.3688106874. The cubic root of 86143807 is about 441.6463921076.

It can be divided in two parts, 8614 and 3807, that added together give a palindrome (12421).

The spelling of 86143807 in words is "eighty-six million, one hundred forty-three thousand, eight hundred seven".