86799247 has 4 divisors (see below), whose sum is σ = 86833656. Its totient is φ = 86764840.

The previous prime is 86799221. The next prime is 86799253. The reversal of 86799247 is 74299768.

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 86799247 - 2¹⁹ = 86274959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86799194 and 86799203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86799047) 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, 13093 + ... + 18574.

It is an arithmetic number, because the mean of its divisors is an integer number (21708414).

Almost surely, 2^86799247 is an apocalyptic number.

86799247 is a deficient number, since it is larger than the sum of its proper divisors (34409).

86799247 is a wasteful number, since it uses less digits than its factorization.

86799247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34408.

The product of its digits is 1524096, while the sum is 52.

The square root of 86799247 is about 9316.6113474804. The cubic root of 86799247 is about 442.7636774212.

The spelling of 86799247 in words is "eighty-six million, seven hundred ninety-nine thousand, two hundred forty-seven".