86800249 has 4 divisors (see below), whose sum is σ = 91906164. Its totient is φ = 81694336.

The previous prime is 86800243. The next prime is 86800253. The reversal of 86800249 is 94200868.

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

It can be written as a sum of positive squares in 2 ways, for example, as 71707024 + 15093225 = 8468^2 + 3885^2 .

It is a cyclic number.

It is not a de Polignac number, because 86800249 - 2⁷ = 86800121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86800243) 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, 2552932 + ... + 2552965.

It is an arithmetic number, because the mean of its divisors is an integer number (22976541).

Almost surely, 2^86800249 is an apocalyptic number.

It is an amenable number.

86800249 is a deficient number, since it is larger than the sum of its proper divisors (5105915).

86800249 is a wasteful number, since it uses less digits than its factorization.

86800249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105914.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 86800249 is about 9316.6651222420. The cubic root of 86800249 is about 442.7653811515.

The spelling of 86800249 in words is "eighty-six million, eight hundred thousand, two hundred forty-nine".