86800839 has 4 divisors (see below), whose sum is σ = 115734456. Its totient is φ = 57867224.

The previous prime is 86800829. The next prime is 86800841. The reversal of 86800839 is 93800868.

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 86800839 - 2⁹ = 86800327 is a prime.

It is a super-2 number, since 2×86800839² = 15068771302207842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86800839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86800829) 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, 14466804 + ... + 14466809.

It is an arithmetic number, because the mean of its divisors is an integer number (28933614).

Almost surely, 2^86800839 is an apocalyptic number.

86800839 is a deficient number, since it is larger than the sum of its proper divisors (28933617).

86800839 is a wasteful number, since it uses less digits than its factorization.

86800839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28933616.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 86800839 is about 9316.6967858786. The cubic root of 86800839 is about 442.7663843398.

The spelling of 86800839 in words is "eighty-six million, eight hundred thousand, eight hundred thirty-nine".