8205739087 has 24 divisors (see below), whose sum is σ = 10286692416. Its totient is φ = 6488048448.

The previous prime is 8205739067. The next prime is 8205739103. The reversal of 8205739087 is 7809375028.

It is not a de Polignac number, because 8205739087 - 2¹⁹ = 8205214799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 8205739087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8205739067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1192218 + ... + 1199080.

It is an arithmetic number, because the mean of its divisors is an integer number (428612184).

Almost surely, 2^8205739087 is an apocalyptic number.

8205739087 is a deficient number, since it is larger than the sum of its proper divisors (2080953329).

8205739087 is a wasteful number, since it uses less digits than its factorization.

8205739087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8767 (or 8760 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The square root of 8205739087 is about 90585.5346454388. The cubic root of 8205739087 is about 2017.0000142566. Note that the first 4 decimals are identical.

The spelling of 8205739087 in words is "eight billion, two hundred five million, seven hundred thirty-nine thousand, eighty-seven".